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Arizona State Parks & Trails
Arizona State Parks & Trails: Owl Walks at Catalina State Park
Catalina State Park Arizona
- April 20, 2026 at 7:00 AM
CommunityGeneral Science
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within 25 miles
Apr 3, 2026
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CREDO (Cosmic Ray Extremely Distributed Observatory)
Answer fundamental questions about the universe using a smartphone
Anywhere
- Ongoing
Citizen SciencePhysicsEducationAstronomy & Spacecredo sciencedetectorcredo detectorcosmic rayhigh energy cosmic rayapplicationsastronomy
Indigo V Expeditions
Monitoring Ocean Health
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- Ongoing
Citizen ScienceClimate & WeatherNature & OutdoorsEcology & EnvironmentBiologyOcean Water Marineecology & environmentsailingclimate changeplanktonocean healthnature & outdoorsmicrobiomes
U.S. Space & Rocket Center
Interactive Astronomy
Interact and explore stunning astronomy imagery contextually in the sky within a digital universe provided by WorldWide Telescope.
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- Ongoing
CommunityExhibitionLive ScienceMediaOutreachStar PartyAstronomy & SpaceastronomyHubblemuseumPlanetariumJames Webb
University of Missouri
Lakes of Missouri Volunteer Program
Monitor water quality of Missouri Lakes
Multiple locations, including yours!
- Ongoing
Citizen ScienceEducationChemistryNature & OutdoorsEcology & EnvironmentOcean Water Marinevolunteertable rocksecchimozingomissouriphosphorussmithvillescienceblue green algaelake of the ozarksfilterblue greenlakemicrocystinqualitytoxinmark twainsecchi diskchlorophyllwatercitizenalgaenutrientssedimentcyanotoxintrumannitrogenreservoirstocktonfiltrationcitizen scienceboat
Ocean Citizen Science Project Directory
Help sailors contribute to marine science worldwide
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Citizen ScienceOcean Water MarineNature & OutdoorsEcology & Environmentrecreational boatersscience outreachenvironmental scienceplanktonboating communityfree range oceanmarine conservationocean researchsailingcoral reefsghost netsfamily expeditionsnurdle
Raven CleanAir Map
Measure and report on the air quality in indoor spaces
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Citizen ScienceHealth & MedicineComputers & TechnologyDisaster Responselibraryair qualityventilationco2covid19
Reid Park Zoo
Reid Park Zoo: Sean Kenney’s Nature Pop!
Reid Park Zoo Arizona
- April 18, 2026 at 7:00 AM
CommunityGeneral Science
Reid Park Zoo
Reid Park Zoo: Sean Kenney’s Nature Pop!
Reid Park Zoo Arizona
- April 8, 2026 at 7:00 AM
CommunityGeneral Science
Reid Park Zoo
Reid Park Zoo: Sean Kenney’s Nature Pop!
Reid Park Zoo Arizona
- April 12, 2026 at 7:00 AM
CommunityGeneral Science