The University of Arizona: Richard F. Caris Mirror Lab Tour
The University of Arizona Steward Observatory 933 N. Cherry Ave., Tucson
Arizona State Parks & Trails: Romero Site Interpretive Hike
Catalina State Park 11570 N. Oracle Rd., Tucson
Arizona State Parks and Trails: Daily Guided Nature Hikes at Red Rock
Red Rock State Park 4050 Red Rock Loop Rd., Sedona
The University of Arizona: Richard F. Caris Mirror Lab Tour
The University of Arizona Steward Observatory 933 N. Cherry Ave., Tucson
The University of Arizona: Laboratory of Tree-Ring Research Docent-led Tour
Bryant Bannister Tree-Ring Building 1215 E. Lowell St., Tucson
The University of Arizona: Richard F. Caris Mirror Lab Tour
The University of Arizona Steward Observatory 933 N. Cherry Ave., Tucson
Arizona State Parks & Trails: A Passion for Backpacking: An Evening of Storytelling with Dick Mallery at Lost Dutchman State Park
Lost Dutchman State Park 6109 N. Apache Trail, Apache JunctionWeek of Events
The University of Arizona: ENR2 Guided Tour
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
The University of Arizona: Richard F. Caris Mirror Lab Tour
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
Monday, April 13, 2026
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April 13, 2026 -Arizona State Parks & Trails: Romero Site Interpretive Hike
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April 13, 2026 -Reid Park Zoo: Sean Kenney’s Nature Pop!
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April 13, 2026 -Arizona State Parks and Trails: Daily Guided Nature Hikes at Red Rock
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April 13, 2026 -The University of Arizona: Richard F. Caris Mirror Lab Tour
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April 13, 2026 -The University of Arizona: Laboratory of Tree-Ring Research Docent-led Tour
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April 13, 2026 -The University of Arizona: Richard F. Caris Mirror Lab Tour
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April 13, 2026 -Arizona State Parks & Trails: A Passion for Backpacking: An Evening of Storytelling with Dick Mallery at Lost Dutchman State Park
Arizona State Parks & Trails: Romero Site Interpretive Hike
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
Reid Park Zoo: Sean Kenney’s Nature Pop!
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
Arizona State Parks and Trails: Daily Guided Nature Hikes at Red Rock
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
The University of Arizona: Richard F. Caris Mirror Lab Tour
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
The University of Arizona: Laboratory of Tree-Ring Research Docent-led Tour
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
The University of Arizona: Richard F. Caris Mirror Lab Tour
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
Arizona State Parks & Trails: A Passion for Backpacking: An Evening of Storytelling with Dick Mallery at Lost Dutchman State Park
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
Tuesday, April 14, 2026
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April 14, 2026 -Desert Botanical Garden: Community Day – Photography for Conservation
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April 14, 2026 -Worlds of Work Pinal County: Career Expo
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April 14, 2026 -Reid Park Zoo: Sean Kenney’s Nature Pop!
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April 14, 2026 -Arizona State Parks and Trails: Daily Guided Nature Hikes at Red Rock
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April 14, 2026 -Arizona State Parks & Trails: The Inside History of Jerome
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April 14, 2026The University of Arizona: Richard F. Caris Mirror Lab Tour
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April 14, 2026 -The University of Arizona: Richard F. Caris Mirror Lab Tour
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April 14, 2026 -⭐ William C. Jack Elementary School: Family STEM Night
Desert Botanical Garden: Community Day – Photography for Conservation
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
Reid Park Zoo: Sean Kenney’s Nature Pop!
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
Arizona State Parks and Trails: Daily Guided Nature Hikes at Red Rock
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
Arizona State Parks & Trails: The Inside History of Jerome
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.
The University of Arizona: Richard F. Caris Mirror Lab Tour
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
The University of Arizona: Richard F. Caris Mirror Lab Tour
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
⭐ William C. Jack Elementary School: Family STEM Night
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
Wednesday, April 15, 2026
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April 15, 2026 -Arizona State Parks & Trails: Guided Bird Walks at Red Rock
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April 15, 2026 -Reid Park Zoo: Sean Kenney’s Nature Pop!
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April 15, 2026 -Arizona State Parks & Trails: Apple Packing Shed Open House
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April 15, 2026 -TGen: Public Tours
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April 15, 2026 -Arizona State Parks and Trails: Daily Guided Nature Hikes at Red Rock
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April 15, 2026 -The University of Arizona: Richard F. Caris Mirror Lab Tour
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April 15, 2026 -The University of Arizona: Richard F. Caris Mirror Lab Tour
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April 15, 2026 -City of Scottsdale: Dog Obedience – Teach Fido Manners
Arizona State Parks & Trails: Guided Bird Walks at Red Rock
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
Reid Park Zoo: Sean Kenney’s Nature Pop!
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
Arizona State Parks & Trails: Apple Packing Shed Open House
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
TGen: Public Tours
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
Arizona State Parks and Trails: Daily Guided Nature Hikes at Red Rock
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
The University of Arizona: Richard F. Caris Mirror Lab Tour
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
The University of Arizona: Richard F. Caris Mirror Lab Tour
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
City of Scottsdale: Dog Obedience – Teach Fido Manners
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
Thursday, April 16, 2026
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April 16, 2026 -Reid Park Zoo: Sean Kenney’s Nature Pop!
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April 16, 2026 -The University of Arizona: Richard F. Caris Mirror Lab Tour
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April 16, 2026 -The University of Arizona: Laboratory of Tree-Ring Research Docent-led Tour
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April 16, 2026 -Arizona State Parks and Trails: Daily Guided Nature Hikes at Red Rock
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April 16, 2026 -Greater Phoenix City Nature Challenge 2026: Acts of Science – Connected − Play Stall Catchers Online
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April 16, 2026 -Maricopa County Parks and Recreation: City Nature Challenge Practice Hike
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April 16, 2026 -The University of Arizona: Richard F. Caris Mirror Lab Tour
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April 16, 2026 -Arizona Science Center: Dorrance DOME After Hours – Cosmic Treasure Chest: Unveiling the Universe with Rubin Observatory
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April 16, 2026 -Mt. Lemmon SkyCenter: SkyNights StarGazing Program
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April 16, 2026 -⭐Canyon Springs STEM Academy: Family STEM Night
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April 16, 2026 -Arizona Science Center: Dorrance DOME After Hours – Moonbase: The Next Step
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April 16, 2026 -Patterson Observatory: Free Observation Night
Reid Park Zoo: Sean Kenney’s Nature Pop!
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
The University of Arizona: Richard F. Caris Mirror Lab Tour
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
The University of Arizona: Laboratory of Tree-Ring Research Docent-led Tour
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
Arizona State Parks and Trails: Daily Guided Nature Hikes at Red Rock
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
Greater Phoenix City Nature Challenge 2026: Acts of Science – Connected − Play Stall Catchers Online
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
Maricopa County Parks and Recreation: City Nature Challenge Practice Hike
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
The University of Arizona: Richard F. Caris Mirror Lab Tour
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
Arizona Science Center: Dorrance DOME After Hours – Cosmic Treasure Chest: Unveiling the Universe with Rubin Observatory
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
Mt. Lemmon SkyCenter: SkyNights StarGazing Program
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
⭐Canyon Springs STEM Academy: Family STEM Night
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
Arizona Science Center: Dorrance DOME After Hours – Moonbase: The Next Step
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
Patterson Observatory: Free Observation Night
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
Friday, April 17, 2026
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April 17, 2026 -Arizona State Parks & Trails: Guided Bird Walk at Sonoita Creek and Patagonia Lake
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April 17, 2026 -Reid Park Zoo: Sean Kenney’s Nature Pop!
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April 17, 2026 -Arizona State Parks & Trails: Sonoran Desert Botany Hike
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April 17, 2026 -Arizona State Parks and Trails: Daily Guided Nature Hikes at Red Rock
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April 17, 2026 -The University of Arizona: Richard F. Caris Mirror Lab Tour
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April 17, 2026 -Maricopa County Parks and Recreation: City Nature Challenge Practice Hike
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April 17, 2026 -Buckeye Public Library System: Explore VR
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April 17, 2026 -The University of Arizona: Richard F. Caris Mirror Lab Tour
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April 17, 2026 -Chandler Public Library: K-12 Afterschool Tutoring
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April 17, 2026 -Mt. Lemmon SkyCenter: SkyNights StarGazing Program
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April 17, 2026 -Embry – Riddle Aeronautical University: Whale Superhighway
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April 17, 2026 -⭐Gilbert Rotary Centennial Observatory: Astronomy Observation
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April 17, 2026 -Embry – Riddle Aeronautical University: Whale Superhighway
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April 17, 2026 -Tucson Amateur Astronomy Association: Stargazing at Catalina State Park
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April 17, 2026 -Arizona State Parks & Trails: Star Party at Catalina State Park
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April 17, 2026 -Arizona State Parks & Trails: Catalina Nights
Arizona State Parks & Trails: Guided Bird Walk at Sonoita Creek and Patagonia Lake
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
Reid Park Zoo: Sean Kenney’s Nature Pop!
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
Arizona State Parks & Trails: Sonoran Desert Botany Hike
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
Arizona State Parks and Trails: Daily Guided Nature Hikes at Red Rock
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
The University of Arizona: Richard F. Caris Mirror Lab Tour
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
Maricopa County Parks and Recreation: City Nature Challenge Practice Hike
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
Buckeye Public Library System: Explore VR
Experience the possibilities of Virtual Reality. This project was made possible in part by the Institute of Museum and Library Services. Ages 13+
The University of Arizona: Richard F. Caris Mirror Lab Tour
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
Chandler Public Library: K-12 Afterschool Tutoring
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
Mt. Lemmon SkyCenter: SkyNights StarGazing Program
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
Embry – Riddle Aeronautical University: Whale Superhighway
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
⭐Gilbert Rotary Centennial Observatory: Astronomy Observation
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
Embry – Riddle Aeronautical University: Whale Superhighway
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
Tucson Amateur Astronomy Association: Stargazing at Catalina State Park
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
Arizona State Parks & Trails: Star Party at Catalina State Park
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
Arizona State Parks & Trails: Catalina Nights
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
Saturday, April 18, 2026
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April 18, 2026 -The University of Arizona: ENR2 Guided Tour
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April 18, 2026 -Rio Salado Audubon Center: Saturday Morning Guided Birding
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April 18, 2026 -Arizona State Parks & Trails: Guided Bird Walks at Red Rock
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April 18, 2026 -Reid Park Zoo: Sean Kenney’s Nature Pop!
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April 18, 2026 -The University of Arizona: AP Practice Exam Day
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April 18, 2026 -City of Tempe: DSLR Photography
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April 18, 2026 -Arizona State Parks & Trails: Tsüvó Trail and Diné Point at Homolovi
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April 18, 2026 -Cave Creek Museum: Kiwanis’ Family Fun Days – Meet a Miner Day
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April 18, 2026 -Greater Phoenix City Nature Challenge 2026: Nature Observations 101 – Using iNaturalist for the Greater Phoenix City Nature Challenge
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April 18, 2026 -Arizona State Parks & Trails: Saturday Nature Program
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April 18, 2026 -Arizona State Parks & Trails: Guided Hike on the Calloway Trail
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April 18, 2026 -Arizona State Parks & Trails: Earth Day Celebration at Red Rock
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April 18, 2026 -Arizona State Parks and Trails: Daily Guided Nature Hikes at Red Rock
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April 18, 2026 -Arizona State Parks & Trails: Apple Packing Shed Open House
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April 18, 2026 -AI Dev Bootcamp (Session 1)
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April 18, 2026 -City of Tempe: Adult CPR/AED & First Aid
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April 18, 2026 -⭐ Rosson House at The Square PHX: Galaxy STEM Fest 2026
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April 18, 2026 -Arizona State Parks & Trails: Star Party at Kartchner Caverns
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April 18, 2026 -Maricopa County Library District: Teen Craft Club – Dried Flower Bookmarks
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April 18, 2026 -Embry – Riddle Aeronautical University: Whale Superhighway
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April 18, 2026 -City of Tempe: Stark Solder Scientist
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April 18, 2026 -Embry – Riddle Aeronautical University: Whale Superhighway
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April 18, 2026 -Embry – Riddle Aeronautical University: Whale Superhighway
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April 18, 2026 -Mt. Lemmon SkyCenter: SkyNights StarGazing Program
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April 18, 2026 -Phoenix Zoo: Girl Scout Night Camp – Outdoor Art
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April 18, 2026 -⭐Gilbert Rotary Centennial Observatory: Astronomy Observation
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April 18, 2026 -Arizona State Parks & Trails: Star Party at Cattail Cove
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April 18, 2026 -Tucson Amateur Astronomy Association: Stargazing at Agua Caliente Park
The University of Arizona: ENR2 Guided Tour
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
Rio Salado Audubon Center: Saturday Morning Guided Birding
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
Arizona State Parks & Trails: Guided Bird Walks at Red Rock
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
Reid Park Zoo: Sean Kenney’s Nature Pop!
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
The University of Arizona: AP Practice Exam Day
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
City of Tempe: DSLR Photography
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
Arizona State Parks & Trails: Tsüvó Trail and Diné Point at Homolovi
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
Cave Creek Museum: Kiwanis’ Family Fun Days – Meet a Miner Day
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
Greater Phoenix City Nature Challenge 2026: Nature Observations 101 – Using iNaturalist for the Greater Phoenix City Nature Challenge
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
Arizona State Parks & Trails: Saturday Nature Program
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
Arizona State Parks & Trails: Guided Hike on the Calloway Trail
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
Arizona State Parks & Trails: Earth Day Celebration at Red Rock
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
Arizona State Parks and Trails: Daily Guided Nature Hikes at Red Rock
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
Arizona State Parks & Trails: Apple Packing Shed Open House
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
AI Dev Bootcamp (Session 1)
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.
City of Tempe: Adult CPR/AED & First Aid
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
⭐ Rosson House at The Square PHX: Galaxy STEM Fest 2026
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
Arizona State Parks & Trails: Star Party at Kartchner Caverns
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
Maricopa County Library District: Teen Craft Club – Dried Flower Bookmarks
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.
Embry – Riddle Aeronautical University: Whale Superhighway
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
City of Tempe: Stark Solder Scientist
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
Embry – Riddle Aeronautical University: Whale Superhighway
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
Embry – Riddle Aeronautical University: Whale Superhighway
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
Mt. Lemmon SkyCenter: SkyNights StarGazing Program
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
Phoenix Zoo: Girl Scout Night Camp – Outdoor Art
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
⭐Gilbert Rotary Centennial Observatory: Astronomy Observation
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
Arizona State Parks & Trails: Star Party at Cattail Cove
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
Tucson Amateur Astronomy Association: Stargazing at Agua Caliente Park
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
Sunday, April 19, 2026
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April 19, 2026 -The University of Arizona: Medicinal Plants Guided Tour
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April 19, 2026 -Reid Park Zoo: Sean Kenney’s Nature Pop!
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April 19, 2026 -Arizona State Parks & Trails: Geology Tour and Presentation
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April 19, 2026 -Arizona State Parks and Trails: Daily Guided Nature Hikes at Red Rock
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April 19, 2026 -Arizona State Parks & Trails: Apple Packing Shed Open House
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April 19, 2026 -Arizona State Parks & Trails: Archaeology Hike at Red Rock State Park
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April 19, 2026 -Mt. Lemmon SkyCenter: SkyNights StarGazing Program
The University of Arizona: Medicinal Plants Guided Tour
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
Reid Park Zoo: Sean Kenney’s Nature Pop!
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
Arizona State Parks & Trails: Geology Tour and Presentation
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
Arizona State Parks and Trails: Daily Guided Nature Hikes at Red Rock
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
Arizona State Parks & Trails: Apple Packing Shed Open House
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
Arizona State Parks & Trails: Archaeology Hike at Red Rock State Park
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
Mt. Lemmon SkyCenter: SkyNights StarGazing Program
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