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Help NASA-supported scientists study Mars from wherever you are. All you need is curiosity. Featured Project: Cloudspotting on Mars During this virtual event, you’ll be guided on how to identify clouds and atmospheric features in online images of Mars to inform future missions. Hear from the project scientist, ask questions, and discover how your participation supports...
Free
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1 event,
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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...
Free
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1 event,
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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...
Free
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1 event,
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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...
Free
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2 events,
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Celebrate STEM with us in Gila County! STEMFest is a free community event made possible by the businesses, organizations, agencies, and individuals that volunteer their time and efforts to make STEM-education a community issue. Arizona SciTech Festival Season is here! We hope to see you in many of the Festival's events all...
Free
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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...
Free
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1 event,
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Join us the 2nd Sunday in April from 10 AM to 3 PM for a market experience that’s anything but average! Each event features a new theme with on-street entertainment, interactive art, themed activities, snacks, and drinks — plus plenty of fun for all ages. This month: Citizen Science! The outdoor market lines Mill Avenue...
Free
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1 event,
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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...
Free
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2 events,
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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...
Free with Admission
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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...
Free
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3 events,
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Greater Phoenix City Nature Challenge 2026: Acts of Science – Connected − Play Stall Catchers Online
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...
Free
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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...
Free with Park Fee
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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...
Free
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2 events,
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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...
Free with Park Fee
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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...
Free
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3 events,
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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...
Free with Admission
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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...
Free
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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...
Free
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0 events,
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1 event,
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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...
Free
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0 events,
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3 events,
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Help NASA-supported researchers study wildlife conservation from wherever you are. All you need is curiosity. Featured Project: Snapshot Wisconsin During this virtual event, you’ll explore trail camera photos and classify the animals you see to help track changes in wildlife that informs wildlife management and conservation decisions. Hear from the project scientists, ask questions, and discover...
Free
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Join University Sustainability Practices and SRP for the free ASU Earth Day Walk at Mountain America Stadium. This unique celebration of sustainability includes a three lap walk around the stadium and sustainability partner tabling fair located in the stadium at the Coca Cola Sun Deck, to learn about sustainability, enjoy light snacks, play games and...
Free
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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...
Free with Park Fee
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5 events,
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Stop by an information table where Ranger Derik will teach you how to use your phone to identify and document your nature findings to help the scientific community. Ranger Derik will host a drop-in information table to get you on your way to becoming a Citizen Scientist using the free iNaturalist app that identifies and...
Free with Park Fee
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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 hike on the interpretive trail near Area 3 (see map link below) while we learn about the free iNaturalist app you can...
Free with Park Fee
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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 roughly 2-3 mile round trip hike on the Bajada and Goat Camp Trails while we learn about the free iNaturalist app you can use...
Free with Park Fee
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7 events,
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Learn about birds of the Sonoran Desert on this easy to moderate guided hike with Ranger Eric while participating in the City Nature Challenge! Join Ranger Eric to look for and learn about resident and migratory birds of the Sonoran Desert on this easy to moderate walk. We will meet at the Nature Center first and...
Free with Park Fee
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Join Ranger Nikki on an easy to moderate hike to use your phone to document biodiversity in the park for the City Nature Challenge global Citizen Science competition that runs April 24-27. The City Nature Challenge is a global competition between cities to document biodiversity in regions around the world, taking place this year...
Free with Park Fee
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8 events,
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Help document biodiversity of a scenic, under-visited part of the park while participating in the City Nature Challenge with Ranger Eric! The option to do a short vs. a longer hike will be available. Join Ranger Eric for a hike around the scenic southern end of the San Tan Mountain Regional Park around the Malpais...
Free with Park Fee
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Join Ranger Jacque on a brief hike and use your phone to document biodiversity in the park for the City Nature Challenge global Citizen Science competition. Citizen Science Month 2026 is an official partner of America 250, the campaign to celebrate the United States of America’s semiquincentennial anniversary. The City Nature Challenge is a global...
Free with Park Fee
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2 events,
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Join Ranger Nikki on a moderate hike and use your phone to document biodiversity in the park for the City Nature Challenge global Citizen Science competition that runs April 24-27. The City Nature Challenge is a global competition between cities to document biodiversity in regions around the world, taking place this year April 24-27. This...
Free with Park Fee
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2 events,
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Join Ranger Kevin to learn about and document biodiversity in the park for the City Nature Challenge global Citizen Science competition that runs April 24-27th. The City Nature Challenge is a global competition between cities to document biodiversity in regions around the world, taking place April 24-27th. Ranger Kevin will lead a hike with stops...
Free with Park Fee
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1 event,
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Help NASA-supported scientists find active comets to find clues about our early universe. All you need is curiosity. Featured Project: Rubin Comet Catchers During this virtual event, you'll look through real images from the Vera C. Rubin Observatory to find comets and other active objects in our solar system. Each comet you spot offers valuable clues...
Free
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1 event,
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Explore Arizona’s vibrant space ecosystem with 40 exhibitors showcasing the latest innovations and ventures. Enjoy a lively, eclectic atmosphere with cash bars, complimentary snacks, and plenty of opportunities to see what’s happening across the state’s space community. Then settle in for headliner speaker sessions in a dynamic theater setting. REGISTRATION Arizona SciTech...
Free
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