Join local guides for a tour of the Romero site and walk through 1000-years of indigenous Hohokam history in 90-minutes! Learn about the area’s ranching history and how the Hohokam made a living in the desert. Note: This trail has stairs and crosses a seasonal stream; be prepared to walk in ankle-deep water. No restrooms... View Article

Part art. Part engineering. Totally amazing! Add a pop of wonder and a pinch of nostalgia to your spring with Sean Kenney’s Nature Pop! Marvel at over 40 wildly creative sculptures made entirely of LEGO® bricks at this exhibition, included with Zoo admission and free for Zoo members from 9 a.m. to 4 p.m. daily.... View Article

Every morning, a volunteer naturalist leads a guided nature walk informing visitors about the different life zones of Red Rock State Park. The subjects discussed on this walk may include geology, wildlife, history, archeology, and plant life. The naturalists welcome questions during the walk, enhancing the learning experience. Hikes are included with park entrance fees... View Article

Join Laurin Pause from the Yavapai County Master Gardeners to learn how to grow berries in your own backyard. She will talk about how to select, and prepare sites for planting blackberries, blueberries, raspberries and others, how to care for plants, and how and when to harvest. Cost for program is $5 per person.

Spring is in full bloom, and the birds are ready to play! Little crafters are invited to create a one-of-a-kind bird feeder made from popsicle sticks — perfect for helping our feathered friends enjoy a tasty treat. Registration is highly recommended.

Explore the cutting-edge of astronomical innovation on this 90-minute guided tour of the Richard F. Caris Mirror Lab at the University of Arizona. Learn how pioneering engineering, optical science, and precision manufacturing come together to create the world’s largest and most advanced telescope mirrors—each 8.4 meters (27 feet) in diameter. Located beneath the U of A’s football... View Article

Join us for our free docent-led tour in the lobby of the Bryant Bannister Tree-Ring Building (1215 E. Lowell St.). Visitors will be introduced to the basic tenets of dendrochronology and have a chance to examine specimens. During your 1.5 hour tour, you will be introduced to the basic tenets of dendrochronology, have a chance to... View Article

April is Citizen Science Month! You can take part in science by helping monarch butterflies. Learn from the Southwest Monarch Study how to grow milkweed, report monarch sightings, and tag monarchs. This event is part of SciStarter's 2.5 Million Acts of Science for America 250 and is a part of Maricopa County Library District's America... View Article

Do you love LEGOs? Join us for a random LEGO challenge or bring your own creativity to make your own LEGO creation. LEGOs Provided!

Explore the cutting-edge of astronomical innovation on this 90-minute guided tour of the Richard F. Caris Mirror Lab at the University of Arizona. Learn how pioneering engineering, optical science, and precision manufacturing come together to create the world’s largest and most advanced telescope mirrors—each 8.4 meters (27 feet) in diameter. Located beneath the U of A’s football... View Article

Picture books and science come together to inspire inquiry for all ages! Join us as we learn about different scientific concepts with picture books and hands-on experiments! 5-12 year olds; parent/guardian recommended but not required. Space is limited, please register only the child(ren) attending the program.

Builders wanted! Bring your imagination and create a pirate ship with trap doors, cannons, and a crow's nest. Participants ages 6-12 will be able to complete the challenges provided or free build. Bricks & Minifigs Chandler partners with us on Lego Club, bringing fun challenges each session. This will be a popular event, and space... View Article

Spring is in full bloom, and the birds are ready to play! Little crafters are invited to create a one-of-a-kind bird feeder made from popsicle sticks - perfect for helping our feathered friends enjoy a tasty treat. Registration is highly recommended.

Landscape conversions can be daunting, but this class will teach you the basics of redesigning your landscape, whether you’re removing grass or simply planning a fresh look. With guidance from a landscape architect, learn how to design a beautiful, functional xeriscape landscape using low water use plants. This program is supported by the City of... View Article

Come be entertained by Dick Mallery telling stories about his adventures along the hiking trails of America. He's hiked 3,200 miles from Mexico to Canada on the Continental Divide, plus several shorter trails, including the 600 mile Great Divide Trail and 800 mile Arizona Trail. At age 70, he completed the 2,650 mile Pacific Crest... View Article

Citizen or community science is a way for the public to get involved in science by incorporating volunteers in different aspects of the research process. For years, the Arizona Game and Fish Department has relied on volunteers to help us carry out our mission to conserve Arizona's diverse wildlife resources. Since April is Citizen Science... View Article

This date will represent peak occurrence for passerine migrants in Spring when many species are in their bright breeding plumages and we’ll take this occasion to check for them along the San Pedro River in the very productive Hereford Bridge area.  Bring comfortable walking shoes and sun protection, water and snacks. Sunrise: 5:55AM Directions: final... View Article

The San Pedro River, a narrow green oasis rippling through desert grassland, is one of the last wild rivers in the Southwest and one of the most endangered. These 3-hour guided walks through desert grassland and among towering cottonwood trees will introduce you to the birds and other wildlife that make their homes in the... View Article

Join us for an introduction to birdwatching basics at the Tucson Bird Alliance Mason Center. After feeder watching at the Center, stroll across Hardy Rd to Arthur Pack Regional Park for some 20 to 30 more species along the trails and golf course pond. Meet at the Mason Center (3835 W. Hardy Rd.) on the... View Article

Your Garden, Your Way! We believe nature should be accessible to everyone. On Community Day pay what you can. Pay $5, $10, $15 or any amount that works for you. In return, your contribution nurtures the Garden’s research, conservation and protection of desert plants for generations to come. Join us each month: April 14: Photography for... View Article

Part art. Part engineering. Totally amazing! Add a pop of wonder and a pinch of nostalgia to your spring with Sean Kenney’s Nature Pop! Marvel at over 40 wildly creative sculptures made entirely of LEGO® bricks at this exhibition, included with Zoo admission and free for Zoo members from 9 a.m. to 4 p.m. daily.... View Article

We built security around identity, tokens, and roles. It was never quite right, capability theorists knew this decades ago. AI agents just made the cracks impossible to ignore. This is the moment to correct the model. We will reason from first principles. What identity is. What an identifier is. What authority actually is, not a... View Article

Using recyclables plus a dash of imagination, construct a one-of-a-kind masterpiece.

Every morning, a volunteer naturalist leads a guided nature walk informing visitors about the different life zones of Red Rock State Park. The subjects discussed on this walk may include geology, wildlife, history, archeology, and plant life. The naturalists welcome questions during the walk, enhancing the learning experience. Hikes are included with park entrance fees... View Article

An engaging and exclusive presentation of the town of Jerome, as told by long-time local, Henry Vincent, in an outdoor setting. Featuring an overview of the geology, United Verde Copper Co. and United Verde Extension mines, and the Douglas family.

Explore the cutting-edge of astronomical innovation on this 90-minute guided tour of the Richard F. Caris Mirror Lab at the University of Arizona. Learn how pioneering engineering, optical science, and precision manufacturing come together to create the world’s largest and most advanced telescope mirrors—each 8.4 meters (27 feet) in diameter. Located beneath the U of A’s football... View Article

Bring your device and learn the in and outs of using Microsoft Word or Google Docs.

Explore the cutting-edge of astronomical innovation on this 90-minute guided tour of the Richard F. Caris Mirror Lab at the University of Arizona. Learn how pioneering engineering, optical science, and precision manufacturing come together to create the world’s largest and most advanced telescope mirrors—each 8.4 meters (27 feet) in diameter. Located beneath the U of A’s football... View Article

Attention, space rangers! Join us in LEGO Club for an out-of-this-world exploration of all things outer space. LEGO Club is open to ages 6-12. Supported by Friends of Chandler Public Library.

April is finical literacy month! Kids will use math skills to learn about saving money, play a game, and finish by decorating their own piggy bank. While supplies last. Each month, kids ages 6-12 explore a new STEAM theme. Our hands-on projects provide a fun way to practice following directions, explore basic science, and learn... View Article

Join our Robotics Club and dive into the exciting world of robotics! This hands-on club is the perfect place to explore technology, programming, and creative problem-solving. Work as a team to program robots and then put them to the test with fun challenges and competitions. No experience needed—just curiosity and a willingness to learn! Ages... View Article

William C. Jack's is out of this world! STEM Night will engage students and families in science with presentations from community partners as well as student-led demonstrations and family STEM challenges.       Arizona SciTech Festival Season is here! We hope to see you in many of the Festival's events all over Arizona. Check... View Article

Join Diane Stallings, author and longtime meditation teacher, as she takes you through a 30 minute guided meditation while teaching strategies for handling stress.

Dementia Friends is a global movement changing how we think, act, and talk about dementia. Join a one hour Info Session to learn what dementia is, early signs, common types, and tips for communication. Attendees are encouraged to turn understanding into action big or small to support community members.

Take the first step in your astrophotography journey with an intensive course at Lowell Observatory! This 2-hour program accommodates a maximum of 6 guests. Using our 17-inch Planewave CDK Telescope and QSI 683 CCD camera, you will be taken through the process of imaging two different objects. Then, we will teach you how to combine,... View Article

The Saguaro Initiatives are a set of research, conservation, and community-science programs led by Desert Botanical Garden to understand, protect, and restore saguaros across the Phoenix Valley and our changing desert. This talk will share what we are learning about saguaro genetics, health, survival, and resilience in the face of rising heat and drought, and... View Article

This popular birding hotspot in urban Tucson offers an easy walk through marshes created by Tucson Water to see waterfowl, regular and visiting warblers, and several exciting species hiding in the reeds. Birders of all experience levels welcome! The Wetlands are located at 2511 W Sweetwater Drive. Limited to 12 participants per group.   **Registration... View Article

This popular birding hotspot in urban Tucson offers an easy walk through marshes created by Tucson Water to see waterfowl, regular and visiting warblers, and several exciting species hiding in the reeds. Birders of all experience levels welcome! The Wetlands are located at 2511 W Sweetwater Drive. Limited to 12 participants per group.   **Registration... View Article

Join Marcia OBara for a leisurely birding experience designed for nature lovers with accessibility challenges; wheelchairs, walkers, or other assistive devices are welcome. The pace is slow, distance short, and terrain even. This month’s birding explores the birding hotspot of historic Canoa Ranch where we hope to see waterfowl, raptors, sparrows, and a lot more.... View Article

Located in the Tucson Sky Islands Important Bird Area, Catalina State Park is home to 150+ species of birds. Experienced birding guides will help you spot and identify beautiful birds as you walk through the park for 3-4 hours. Bring binoculars and a birding field guide to enhance your experience! Guides are sold in the gift... View Article

Bird enthusiasts join a naturalist for a guided walk appropriate for beginner and advanced birders. Most year-round birds are found in the riparian area next to Oak Creek or along the field behind the Visitor Center. The Audubon Society has designated Red Rock State Park as part of the Lower Oak Creek Important Birding Area... View Article

Join us for a 90-minute walk around the Phoenix Zoo where we will learn the basics of photography including composition, lighting and capturing emotion. On our walk, we will cover how to photograph through fences, glass and foliage in addition to learning more about the Phoenix Zoo and the natural world. At the end of... View Article

Part art. Part engineering. Totally amazing! Add a pop of wonder and a pinch of nostalgia to your spring with Sean Kenney’s Nature Pop! Marvel at over 40 wildly creative sculptures made entirely of LEGO® bricks at this exhibition, included with Zoo admission and free for Zoo members from 9 a.m. to 4 p.m. daily.... View Article

Institutional adoption of tokenized assets hinges on solving a critical infrastructure problem: how do digital securities operate across multiple platforms, jurisdictions, and compliance regimes without recreating the vendor lock-in that plagues legacy systems? Linux Foundation Decentralized Trust and OpenAssets are establishing this foundational layer through the Open Tokenized Asset Standard (OTAS)—a recently approved lab building... View Article

Experience a piece of Arizona history. Get an opportunity to explore the Pendley Homestead Apple Packing Shed. A ranger will be available to answer any questions about the homestead's history. Come and see the Bean Cutler 1933 Sorter and Bean Cutler Polisher added in 1946. Saturdays and Sundays from 10 a.m.-12 p.m. Resuming April 8,... View Article

Using recyclables plus a dash of imagination, construct a one-of-a-kind masterpiece.

Join us every Wednesday at 10 am in the Education Classroom for an interactive story session. This fun hour features nature-themed stories, songs, puppets, and sensory activities! Held rain or shine. Kids of all ages welcome, but we are geared toward infants through 7-year-olds. Registration is not necessary. Free with Garden Admission.

Would you like to view the next generation sequencing technology and biomedical research laboratories where TGen scientists unlock the mysteries of cancer, diabetes, rare and neurological disease? Sign up to schedule a tour with a member of our Education and Outreach team to experience the wonders and promise of biomedical research. TGen welcomes public, senior, school... View Article

Every morning, a volunteer naturalist leads a guided nature walk informing visitors about the different life zones of Red Rock State Park. The subjects discussed on this walk may include geology, wildlife, history, archeology, and plant life. The naturalists welcome questions during the walk, enhancing the learning experience. Hikes are included with park entrance fees... View Article

Make Some Noise! Explore the world of sound as children experiment with water xylophones, make music with instruments, craft their own musical creations, and uncover the rhythm in math. Children ages 2 to 5 participate in fun and simple educational activities that introduce them to science, technology, engineering, art, and math. This program is designed to encourage... View Article

Explore the cutting-edge of astronomical innovation on this 90-minute guided tour of the Richard F. Caris Mirror Lab at the University of Arizona. Learn how pioneering engineering, optical science, and precision manufacturing come together to create the world’s largest and most advanced telescope mirrors—each 8.4 meters (27 feet) in diameter. Located beneath the U of A’s football... View Article

Let you imagination loose at LEGO Club! Each session will feature a new challenge to test your building skills and inspire creativity. All LEGOs will be provided. Children ages 5-12. Registration required for each child attending.

Explore the cutting-edge of astronomical innovation on this 90-minute guided tour of the Richard F. Caris Mirror Lab at the University of Arizona. Learn how pioneering engineering, optical science, and precision manufacturing come together to create the world’s largest and most advanced telescope mirrors—each 8.4 meters (27 feet) in diameter. Located beneath the U of A’s football... View Article

Come and explore the world of STEM! This month we will be exploring the world of physics and engineering by making a rocket car out of cardboard and balloons! Materials provided. Registration required.

Foster curiosity and imagination by engaging in topics like science, technology, engineering, art, and mathematics. Join us as we workshop each month within these various topics and explore the world around us. Suitable for ages 7 and up. While supplies last!

Do you want your fury family member to have manners at home, with guests and out in public? Learn simple methods to teach your dog manners within your life. Training can begin at 20 weeks to senior age. You'll have tail waggin' good time! Reactive or aggressive dogs are better suited for private sessions and... View Article

open to all levels of learning! speak with mentors and peers to unravel and understand fundamentals of the web and developer tools to review. this night's topic: introducing git and deploying personal websites without installing? what we will cover: how to work with git & GitHub setting up GitHub codespaces deploying a viewable site and... View Article

Part art. Part engineering. Totally amazing! Add a pop of wonder and a pinch of nostalgia to your spring with Sean Kenney’s Nature Pop! Marvel at over 40 wildly creative sculptures made entirely of LEGO® bricks at this exhibition, included with Zoo admission and free for Zoo members from 9 a.m. to 4 p.m. daily.... View Article

Building and deploying a distributed system that removes the Single Point of Failure is difficult. At Lockness (https://github.com/LFDT-Lockness), we make Multi-Party Computation (MPC) more accessible to both consumers, who integrate MPC into their infrastructure, and cryptographers, who develop distributed protocols. Join our introductory call to discover what Lockness offers, how you can benefit, and how... View Article

Using recyclables plus a dash of imagination, construct a one-of-a-kind masterpiece.

Explore the cutting-edge of astronomical innovation on this 90-minute guided tour of the Richard F. Caris Mirror Lab at the University of Arizona. Learn how pioneering engineering, optical science, and precision manufacturing come together to create the world’s largest and most advanced telescope mirrors—each 8.4 meters (27 feet) in diameter. Located beneath the U of A’s football... View Article

Join us for our free docent-led tour in the lobby of the Bryant Bannister Tree-Ring Building (1215 E. Lowell St.). Visitors will be introduced to the basic tenets of dendrochronology and have a chance to examine specimens. During your 1.5 hour tour, you will be introduced to the basic tenets of dendrochronology, have a chance to... View Article

Paint a profusion of succulents for lasting beauty year-round. Visit the gardens to get color ideas. No experience necessary. All materials are provided by the artist.  Tiles are ready to hang when painting is finished. Each tile is approximately 8” x 8”.

Mosses, hornworts, and liverworts are small plants that can be easily overlooked.  However, they represent a crucial stage in the evolution of land plants.  They also differ from other land plants in some key respects.  This class delves into these important plants.

Every morning, a volunteer naturalist leads a guided nature walk informing visitors about the different life zones of Red Rock State Park. The subjects discussed on this walk may include geology, wildlife, history, archeology, and plant life. The naturalists welcome questions during the walk, enhancing the learning experience. Hikes are included with park entrance fees... View Article

Help accelerate research on Alzheimer’s disease by playing a video game. All you need is curiosity. Featured Project: Stall Catchers During this virtual event, you'll look at images of blood flow in the brain and mark whether vessels are flowing or stuck. Every image you review helps researchers analyze data faster and move research forward! Hear... View Article

Birds are visible, vocal sentinels that alert us to environmental harms through their declining numbers or their failure to thrive. In her book Feather Trails—A Journey of Discovery Among Endangered Birds, Sophie Osborn shares her personal experiences reintroducing endangered Peregrine Falcons, Hawaiian Crows, and California Condors to the wild. While immersing readers in the triumphs... View Article

Learn about the April 24-27 City Nature Challenge and free smartphone apps that can help you identify plants, animals, and more, while helping contribute to science!   Join Ranger Eric on an easy 0.4-mile walk on Lions Trail while we learn about the free iNaturalist app you can use to identify any living organism on the... View Article

Explore the cutting-edge of astronomical innovation on this 90-minute guided tour of the Richard F. Caris Mirror Lab at the University of Arizona. Learn how pioneering engineering, optical science, and precision manufacturing come together to create the world’s largest and most advanced telescope mirrors—each 8.4 meters (27 feet) in diameter. Located beneath the U of A’s football... View Article

If you are having problems with your Android-based cell phone, bring it to the Sun City Library any Thursday afternoon. The Help Table is open from 2:00pm to 3:30pm on Thursdays at the library.

Step into a new era of sky-watching in the Dorrance DOME as the NSF–DOE Vera C. Rubin Observatory unveils its first images and discoveries—from sweeping nebula mosaics and galaxy swarms to thousands of newly found asteroids captured in just hours. Join us on this live, presenter-led journey as we decode how Rubin’s 3,200-megapixel camera will... View Article

Formerly known as STEAM Lab, this refreshed program brings nature and STEAM together in hands-on adventures! Interactive experiments and creative projects invite kids to explore, invent, and uncover the wonders around them, turning curiosity into a fun-filled learning adventure. Registration is required. Ages 6 - 12

This program combines Science, Technology, Engineering, Art, and Math to boost critical thinking and problem-solving skills with engaging hands-on activities. Each session offers interactive challenges to encourage creative thinking. Ages 6 - 11

Explore the night skies from the summit of Mt. Lemmon using Arizona's LARGEST publicly available telescopes!  Under the guidance of a professional, visitors will enjoy a brief astronomy lecture, a light dinner, and an exclusive opportunity to observe astronomical objects and phenomena.  This five-hour program starts 2 hours before sunset and accommodates up to 28... View Article

Join us for a fun-filled night with interactive activities throughout the campus in Science, Technology, Engineering, and Math. Canyon Springs STEM Academy’s annual STEM Night is a campus-wide celebration of innovation, creativity, and hands-on learning. The event showcases student work from all grade levels, highlighting engineering design, coding, robotics, science investigations, and problem-solving challenges aligned... View Article

Here's a friendly look at the latest operating system from Microsoft! We’ll take a look at its cool new features, sleek design, and how it makes your user experience even better. Join us to discover some exciting advancements and innovative tools that Windows 11 brings to the table, making it easier for you to enjoy... View Article

Can you tell what is real and what is AI? Join AI Trailblazers for a fun, interactive happy hour where you put your detective skills to the test. Network with fellow tech enthusiasts while exploring the blurring line between human and AI-generated content.

All are welcome! If you're in Phoenix and are into podcasting, want to try podcasting, love podcasts, or are just podcast-curious... JOIN US at Fate Brewing Company in Phoenix (not Tempe) for our Third Thursday monthly meeting. There's no obligation to buy/order anything. Come check us out!

Moonbase: The Next Step is the story of human endeavor, pushing scientific and technological advances to the limit. Traveling 250,000 miles and surviving the hostile and alien conditions of reduced gravity, extreme temperatures and toxic lunar dust, we explain the science and technology of the Artemis missions. Follow our story filled with awe, danger, trepidation... View Article

This month, our focus is on Behavioral AI. PRESENTATION OVERVIEW Behavioral AI: What AI Reveals When It Enters Real Work As AI moves from experimentation into everyday operations, its biggest impact often isn’t technical—it’s behavioral. In this session, David Dean explores what becomes visible when intelligent systems enter real organizational workflows: how judgment shifts, how responsibility blurs,... View Article

On Thursday, April 16, 2026, join Old Pueblo Archaeology Center’s “Third Thursday Food for Thought” online presentation featuring “Ghost Canals of the Phoenix Area” by archaeologist Daniel Garcia. This free Zoom presentation will be held from 7:00 to 8:30 p.m. ARIZONA/Mountain Standard Time (same as Pacific Daylight Time). Dan Garcia, archaeologist for central Arizona’s Salt... View Article

Public Night is held once a month on the Thursday nearest first quarter moon. Observing starts a half hour after sunset.  The event is weather dependent and is canceled in the event of clouds or inclement weather.  Admission is free, but space is limited.  Guests wishing to attend this in-person event must register. The University... View Article

Join us as we explore Splendido’s diverse birdlife on a guided walk. Discover colorful songbirds and hummingbirds, and engage in insightful discussions about bird behavior and conservation. We’ll conclude with a delightful light brunch at Splendido, reflecting on the birds we saw and the time we spent together. Join us for an enriching and memorable birding... View Article

Join us at the Birding Trail kiosk (next to campsite #12 in Patagonia Lake State Park) for a ranger led hike to learn about the diverse avian wildlife at Patagonia Lake and Sonoita Creek. The park is designated as an Important Bird Area by the Audubon Society. If you are a bird watcher you may hit... View Article

Part art. Part engineering. Totally amazing! Add a pop of wonder and a pinch of nostalgia to your spring with Sean Kenney’s Nature Pop! Marvel at over 40 wildly creative sculptures made entirely of LEGO® bricks at this exhibition, included with Zoo admission and free for Zoo members from 9 a.m. to 4 p.m. daily.... View Article

In the natural world, plants and insects rely on one another. Their relationship is an important part of the ecosystem. Explore how providing well-chosen plants can attract and support important local pollinators. Ages 18+

Get to know the plant life of the Sonoran Desert on this guided hike with Arizona State Park Volunteer, Valerie. You'll spend an hour exploring the trails and learning about local cacti, trees, and shrubs, seeing how they've adapted to grow in and support this ecosystem. Expect some small hills and loose gravel with no... View Article

Using recyclables plus a dash of imagination, construct a one-of-a-kind masterpiece.

Learn practical strategies how to reduce outdoor water use—often the biggest portion of household consumption—through smart plant choices, soil improvement, microclimates, rain harvesting, container gardening and more. Leave with actionable tips to conserve water while maintaining a thriving desert garden. Attendees will come away with actionable steps to conserve water while cultivating beauty in their outdoor... View Article

Every morning, a volunteer naturalist leads a guided nature walk informing visitors about the different life zones of Red Rock State Park. The subjects discussed on this walk may include geology, wildlife, history, archeology, and plant life. The naturalists welcome questions during the walk, enhancing the learning experience. Hikes are included with park entrance fees... View Article

Please join us for a workshop on AI Storytelling! Using easy-to-use AI tools, you’ll co-create short stories or poems based on your favorite memories, local history, or fun prompts. Don't worry if you've never used AI before -- you will be guided step by step. Registration required.

This class is designed to help participants understand core nutrition principles and apply them to everyday meals. Learners will explore how to shop, prep, plan and cook by choosing ingredients that support energy, wellness and long-term health. Through simple recipes and meal planning strategies, participants will discover how to batch cook and meal prep to... View Article

Explore the cutting-edge of astronomical innovation on this 90-minute guided tour of the Richard F. Caris Mirror Lab at the University of Arizona. Learn how pioneering engineering, optical science, and precision manufacturing come together to create the world’s largest and most advanced telescope mirrors—each 8.4 meters (27 feet) in diameter. Located beneath the U of A’s football... View Article

Learn about the April 24-27 City Nature Challenge and free smartphone apps that can help you identify plants, animals, and more, while helping contribute to science!  Join Ranger Eric on a short, easy walk between the Nature Center and the Quail Trailhead while we learn about the free iNaturalist app you can use to identify... View Article

Experience the possibilities of Virtual Reality. This project was made possible in part by the Institute of Museum and Library Services.   Ages 13+

Explore the cutting-edge of astronomical innovation on this 90-minute guided tour of the Richard F. Caris Mirror Lab at the University of Arizona. Learn how pioneering engineering, optical science, and precision manufacturing come together to create the world’s largest and most advanced telescope mirrors—each 8.4 meters (27 feet) in diameter. Located beneath the U of A’s football... View Article

Looking for advanced academic support in math or English? The K–12 Afterschool Tutoring Program is held every Friday after school to help students build confidence and improve their skills. Whether it's homework help or test prep, we’re here to support your child’s growth! Led by experienced high school mentors, Olivia and Jaden, this program is... View Article

LaterLab is the ultimate playground for innovation, creativity, and connection! Designed for Makers of all kinds, this hands-on space in CREATE at Arizona Science Center® invites you to bring your ideas to life using professional-grade tools and materials. From 3D printing and laser cutting to woodworking and sewing—LaterLab has everything you need to build, innovate,... View Article

Explore the night skies from the summit of Mt. Lemmon using Arizona's LARGEST publicly available telescopes!  Under the guidance of a professional, visitors will enjoy a brief astronomy lecture, a light dinner, and an exclusive opportunity to observe astronomical objects and phenomena.  This five-hour program starts 2 hours before sunset and accommodates up to 28... View Article

Whale Super Highway follows humpback whales and pygmy blue whales on their 4,000-mile migration down the coast of Western Australia to the freezing waters of Antarctica and back again. Whale Super Highway provides a stunning look at life in the waters of Western Australia. It reveals fascinating information about these whales — while underscoring how much we... View Article

Come view the stars during the Arizona SciTech Festival! Fun for the whole family, located at the Gilbert Riparian Preserve. East Valley Astronomy Club members staff operations and programming for the Observatory. The observatory houses a 16-inch diameter Meade, modified Richey-Cretien scope, guided by a Paramount ME computer controlled German equatorial mount slaved to The... View Article

Whale Super Highway follows humpback whales and pygmy blue whales on their 4,000-mile migration down the coast of Western Australia to the freezing waters of Antarctica and back again. Whale Super Highway provides a stunning look at life in the waters of Western Australia. It reveals fascinating information about these whales — while underscoring how much we... View Article

Star Party at Catalina State Park – Tucson, AZ Viewing Location: Trailhead Picnic area at end of road inside the park. Great dark skies just north of Tucson at Catalina State Park. Star Party open to the Public.  Admission fee for entrance into Catalina State Park. Tucson Amateur Astronomy Association will have approximately 10 telescopes... View Article

Catalina State Park’s dark skies are ideal for astronomical observation; imagine what you can see through a telescope! Astronomers from the Tucson Amateur Astronomy Association (TAAA) will be on site with their telescopes to show you the cosmos and answer your questions. Bring a jacket, warm drinks, and red light if you have one to... View Article

Night hiking is an exciting way to experience Catalina State Park’s desert wildlife and dark skies. On a one-mile, guided hike on the Nature Trail, learn about the desert’s nocturnal animals like scorpions and bats. Enjoy a constellation tour featuring a variety of cultures and astronomy facts. Please bring a flashlight and a jacket. Caution:  The... View Article

Join us for an introduction to birdwatching basics at the Tucson Bird Alliance Mason Center. After feeder watching at the Center, stroll across Hardy Rd to Arthur Pack Regional Park for some 20 to 30 more species along the trails and golf course pond. Meet at the Mason Center (3835 W. Hardy Rd.) on the... View Article

Birds love riparian (streamside) habitats with native plants, making this location, which is home to both, one of the “birdiest” spots on the east side of Tucson. We’ll explore about 2 miles along the wash, with good chances of seeing raptors, woodpeckers, busy songbirds, ground-hugging sparrows, and towhees. I’ll point out the Watershed Management Group’s... View Article

We will walk a route that navigates habitats not normally visited at Danny Lopez Park (formerly Columbus Park) along with touching the traditional spots.  This is not an easy ¾ mile walk around Silverbell Lake, but a 1.75-mile trek over some uneven terrain.  There are bathrooms, benches, shade, and water but we will only occasionally be near them. ... View Article

How can we have a lush but water-wise garden in the middle of a densely populated city? Join us at the Environment and Natural Resources 2 Building (ENR2), a LEED Platinum certified structure to learn how to create your own urban oasis. Please note: this tour is given on Saturday mornings and we meet in... View Article

Join our local bird enthusiasts for a guided bird walk through the Rio Salado habitat! These walks are for everyone: experts, novices, and people who have never gone birding in their entire life.   What to Know Before You Go: Bring water and wear sunscreen and shoes for walking. Groups usually travel slowly, over varying... View Article

Join Marcia OBara for an outing designed for nature lovers with or without accessibility challenges; wheelchairs, walkers, or other assistive devices are welcome. On this trip, we will gather at one of Southern Arizona’s birding gems: Santa Rita Lodge in Madera Canyon! Here, we’ll watch for hummingbirds, migrating orioles, and an abundance of other species.... View Article

Bird enthusiasts join a naturalist for a guided walk appropriate for beginner and advanced birders. Most year-round birds are found in the riparian area next to Oak Creek or along the field behind the Visitor Center. The Audubon Society has designated Red Rock State Park as part of the Lower Oak Creek Important Birding Area... View Article

Part art. Part engineering. Totally amazing! Add a pop of wonder and a pinch of nostalgia to your spring with Sean Kenney’s Nature Pop! Marvel at over 40 wildly creative sculptures made entirely of LEGO® bricks at this exhibition, included with Zoo admission and free for Zoo members from 9 a.m. to 4 p.m. daily.... View Article

he Center for Recruitment and Retention of Mathematics Teachers (CRR) and the Mathematics Department at the University of Arizona will host the NINETEENTH ANNUAL ADVANCED PLACEMENT MATHEMATICS PRACTICE EXAMS For the 2025-2026 school year, the AP Practice Exams in Statistics, Calculus AB, Calculus BC, and Precalculus are scheduled for SATURDAY, APRIL 18, 2026 (9:00am-3:00pm) This... View Article

You'll never shoot in auto again after learning how to best use concepts like Aperture, Speed and ISO and exploring your camera's buttons and settings. Mix-in discussions about composition and photo reviews and you'll leave with a renewed confidence in your photography. Bring DSLR camera and manual to class. 480-350-5208     Ages 14+ Apr... View Article

Join a ranger lead walk on the Tsüvó Loop Trail and Diné Point. This 2-mile-long loop walking trail winds its way through a segment of a high desert prairie of the upper-Sonoran grassland within the park. View petroglyphs and panoramic views of the Middle Little Colorado River Valley and Painted Desert from Diné Point. Tsüvó... View Article

Using recyclables plus a dash of imagination, construct a one-of-a-kind masterpiece.

Cave Creek had large gold mining operations during the late 1800’s and early 1900’s.  What do you suppose children did if they lived in the gold camp? Come to see what the life of a miner was like.  Join us for a morning of learning and fun.  You can even pan for gold! This event... View Article

Do you like observing nature? Then help science and make your observations count! The City Nature Challenge is a friendly worldwide competition among cities to see whose residents can spot and identify the most wildlife. Join Arizona Science Center on April 18 to learn how to use the iNaturalist app, sharpen your observation skills, and... View Article

nterested on how to start and maintain a desert garden? Wonder no more! Visit the Chandler Sunset Library on 3rd Saturdays between 10 a.m. to Noon to chat with a Master Gardener and have your questions answered—you can even bring your problem plant. University of Arizona Cooperative Extension Master Gardeners are certified volunteers who answer questions about gardening,... View Article

Join us to learn the secrets of creating aromatherapy blends that both enhance therapeutic effects and smell fantastic together. Certified aromatherapist Kerry Cummins of Catalina Aromatherapy will share a simple system that works for any blend you wish to make. Each participant will create a fantastic aromatherapy blend of their own to take home.

The Nature Program is a live reptile exhibit and the perfect opportunity for people of all ages to learn all about Arizona’s wildlife! Our team of passionate, experienced volunteers are here to answer your questions and show you how these animals have adapted to survive in the Sonoran Desert. This program is weather dependent. Meet at... View Article

Learn about hiking safety, and enjoy the scenic surroundings of the Sonoran Desert as you join our park guide to trek the Calloway Trail to an overlook on the face of Picacho Peak! Register at the link below. The elevation gain of this trail is 334 feet and the hike's total distance will be 1 mile. Plan on... View Article

Join us on Saturday, April 18th from 10 a.m. to 2 p.m. for our annual Earth Day Celebration in Sedona's red rocks! FREE admission from 9:30 a.m. to 1:30 p.m.! This event features live wildlife presentations, nature hikes, booths, games, prizes, kids crafts, and much more! Learn from our community partners how we can all... View Article

Every morning, a volunteer naturalist leads a guided nature walk informing visitors about the different life zones of Red Rock State Park. The subjects discussed on this walk may include geology, wildlife, history, archeology, and plant life. The naturalists welcome questions during the walk, enhancing the learning experience. Hikes are included with park entrance fees... View Article

Experience a piece of Arizona history. Get an opportunity to explore the Pendley Homestead Apple Packing Shed. A ranger will be available to answer any questions about the homestead's history. Come and see the Bean Cutler 1933 Sorter and Bean Cutler Polisher added in 1946. Saturdays and Sundays from 10 a.m.-12 p.m. Resuming April 8,... View Article

Session 1 of a 4-part hands-on workshop series for software developers. Learn practical AI-assisted development with Claude Code and AI agents. Scholarships available.

Children will learn about the planets closest to our sun through various experiments. Fun and Learning with STEAM Created for children ages 3 to 6, these activity-based, hands-on camps explore science and include STEAM elements. Camps are usually held on the first and third Saturdays of each month unless otherwise noted. Even though there are... View Article

Learn the basics needed to help save a life. Discern between heart attacks, strokes and airway obstruction. Learn to care for burns, cuts, injuries, and more. Training meets OSHA Guidelines for First Aid Programs and combines lecture, interactive video demonstrations and hands-on training. Students will earn a combo certificate for CPR/AED and Basic FA. 480-350-5208... View Article

Get ready to blast off into the future at Galaxy STEM Fest! Join us on Saturday, April 18th for our FREE, family-friendly festival celebrating the intersection of STEM and history at Heritage & Science Park in Downtown Phoenix. This great community event features local vendors and nonprofits, hands-on activities for all ages, thrilling demonstrations, delicious... View Article

The Sonoran Desert is home to a wide variety of venomous reptiles and arthropods and myths about them abound, yet only a handful are capable of producing medically significant injuries in people. Spend the afternoon learning which creatures are truly dangerous, how to identify them, avoid their bites and stings, and provide appropriate first aid.... View Article

oin Kartchner Caverns, an International Dark Sky Park, for a Star Party on April 18 to celebrate International Dark Sky Week! Before night sky viewing through high-powered telescopes begins, listen to a presentation by Ted Blank, "Light Pollution: Why Should I Care?" This talk will discuss the importance of protecting our dark skies through smart lighting to... View Article

Join us at the library once a month to make creative and unique crafts! This month we will be making dried flower bookmarks. Additional crafting supplies and kits will also be available. For teens.

The day is done and it’s time to unwind and settle in for the night. As the stars begin to appear so does the night shift. You might not know that they are there, but many of the desert’s night life have come out into the cover and coolness of the dark, looking for food... View Article

Whale Super Highway follows humpback whales and pygmy blue whales on their 4,000-mile migration down the coast of Western Australia to the freezing waters of Antarctica and back again. Whale Super Highway provides a stunning look at life in the waters of Western Australia. It reveals fascinating information about these whales — while underscoring how much we... View Article

Become one of the circuit culprits and learn how to thwart your siblings and friends with an alarm that will go off whenever they open a drawer or door! Be on top of knowing what’s going on with your stuff, by keeping it safe and secure, and while you’re at it learn the basics of... View Article

Whale Super Highway follows humpback whales and pygmy blue whales on their 4,000-mile migration down the coast of Western Australia to the freezing waters of Antarctica and back again. Whale Super Highway provides a stunning look at life in the waters of Western Australia. It reveals fascinating information about these whales — while underscoring how much we... View Article

LaterLab is the ultimate playground for innovation, creativity, and connection! Designed for Makers of all kinds, this hands-on space in CREATE at Arizona Science Center® invites you to bring your ideas to life using professional-grade tools and materials. From 3D printing and laser cutting to woodworking and sewing—LaterLab has everything you need to build, innovate,... View Article

Whale Super Highway follows humpback whales and pygmy blue whales on their 4,000-mile migration down the coast of Western Australia to the freezing waters of Antarctica and back again. Whale Super Highway provides a stunning look at life in the waters of Western Australia. It reveals fascinating information about these whales — while underscoring how much we... View Article

Explore the night skies from the summit of Mt. Lemmon using Arizona's LARGEST publicly available telescopes!  Under the guidance of a professional, visitors will enjoy a brief astronomy lecture, a light dinner, and an exclusive opportunity to observe astronomical objects and phenomena.  This five-hour program starts 2 hours before sunset and accommodates up to 28... View Article

Enjoy badgework activities and games alongside other troops! Girl Scout camps have prepared curriculum for multiple scout levels, plus pre-set dates and sleeping locations. These camps are appropriate for ages 7 and above. Outdoor Art: Come experience the sights and sounds of the zoo at night. Inspired by the Outdoor Art badge, all Girl Scout levels will... View Article

Come view the stars during the Arizona SciTech Festival! Fun for the whole family, located at the Gilbert Riparian Preserve. East Valley Astronomy Club members staff operations and programming for the Observatory. The observatory houses a 16-inch diameter Meade, modified Richey-Cretien scope, guided by a Paramount ME computer controlled German equatorial mount slaved to The... View Article

Join us for a star party to explore the night sky at Cattail Cove State Park! We'll be stargazing in the park's boat parking lot to take in beautiful views of Lake Havasu and the sparkling night sky. The event is free with the paid park entry. Havasu Astronomy Club members are bringing several telescopes... View Article

Viewing Location:  Bus Lanes @ North end of Parking Lot Information: Great dark skies in Northeast Tucson.  Star Party open to the Public.  Cost: FREE. Tucson Amateur Astronomy Association will have several telescopes for astronomical viewing.  We will observe Planets, Nebulae, Galaxies, Star Clusters and lots more.  Great opportunity to look through a variety of... View Article

This Nature Conservancy property and trail system provides access to a mixed habitat of primarily riparian area, with a free-flowing creek as a boundary. Woodland areas of Fremont cottonwood, ash, and netleaf hackberry alternate with grassland areas, mesquite bosque, and wetland portions. This diverse habitat provides the opportunity to search for a wide variety of... View Article

Located in the Tucson Sky Islands Important Bird Area, Catalina State Park is home to 150+ species of birds. Experienced birding guides will help you spot and identify beautiful birds as you walk through the park for 3-4 hours. Bring binoculars and a birding field guide to enhance your experience! Guides are sold in the gift... View Article

Plants have been used as medicine for hundreds, if not thousands of years. They are part of the history and lore of almost every society on earth. Join us to learn how these plants—from the Sonoran Desert and elsewhere--have been traditionally used to treat different ailments, diseases and other conditions. Tour starts at the Berger... View Article

How were the majestic Santa Catalina Mountains formed? What are the rocks we see all over the park? Join experienced geologist Karen to learn about the fascinating geologic history of the Catalinas. This program lasts around 3-4 hours, begins with a geology presentation, and includes a guided walk. Meet at the Picnic Area Ramada. This... View Article

Part art. Part engineering. Totally amazing! Add a pop of wonder and a pinch of nostalgia to your spring with Sean Kenney’s Nature Pop! Marvel at over 40 wildly creative sculptures made entirely of LEGO® bricks at this exhibition, included with Zoo admission and free for Zoo members from 9 a.m. to 4 p.m. daily.... View Article

Join geology interpreter John Sutton for a fascinating journey back 1.7 billion years. Learn how powerful geological forces shaped the Verde Valley and laid the foundation for Jerome's rugged landscape and rich mining history. Perfect for history lovers, rock hounds and curious minds of all ages. This program is scheduled every Sunday at 10 a.m.,... View Article

Every morning, a volunteer naturalist leads a guided nature walk informing visitors about the different life zones of Red Rock State Park. The subjects discussed on this walk may include geology, wildlife, history, archeology, and plant life. The naturalists welcome questions during the walk, enhancing the learning experience. Hikes are included with park entrance fees... View Article

Experience a piece of Arizona history. Get an opportunity to explore the Pendley Homestead Apple Packing Shed. A ranger will be available to answer any questions about the homestead's history. Come and see the Bean Cutler 1933 Sorter and Bean Cutler Polisher added in 1946. Saturdays and Sundays from 10 a.m.-12 p.m. Resuming April 8,... View Article

Red Rock State Park has been a destination for Native Americans for several millennia. Most of the ancient features found in the park are from the Sinagua culture dating about 1100 to 1425 AD. Come and hear the fascinating story of the pre-Columbian people who lived and traveled in the park. The hike will identify... View Article

Explore the night skies from the summit of Mt. Lemmon using Arizona's LARGEST publicly available telescopes!  Under the guidance of a professional, visitors will enjoy a brief astronomy lecture, a light dinner, and an exclusive opportunity to observe astronomical objects and phenomena.  This five-hour program starts 2 hours before sunset and accommodates up to 28... View Article

Come out to Bawker Bawker Cider House for some birds, brews, and bingo! You’ll put your bird ID knowledge to the test, compete to win sweet birdy prizes, and sip some of the best cider in town with your friends from Tucson Bird Alliance! Note that bingo will start promptly at 6:30. This event is... View Article