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San Antonio League of Sidewalk Astronomers
First Friday Stargazing
UT San Antonio TX
- December 5, 2025 at 7:00 AM through 7:00 AM
CommunityAstronomy & Space
sidewalk
within 25 miles
Dec 1, 2025
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Gulf of Maine King Tides
Help predict the impacts of future sea level rise
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & Environmentschoodic institutenational parks
Interactive Science!
Explore the world with DIY hands-on activities, engaging science videos, and science experiments for kids at home!
Anywhere
- Ongoing
Live ScienceMediaAgricultureAnimalsArchaeology & CulturalArtAstronomy & SpaceBiologyChemistryClimate & WeatherEcology & EnvironmentEducationEngineeringGeneral ScienceInsects & PollinatorsPhysics
The Makeability Lab at the University of Washington
Project Sidewalk
Collect an open dataset on sidewalk accessibility in cities
Anywhere
- Ongoing
Citizen ScienceHealth & MedicineTransportationComputers & Technologywheelchaircsm2026open sourcecsm-featuredvirtualmachine learningcrowdsourcingcitizen sciencepedestrianopen dataaisidewalkaccessibilitycomputer visionartificial intelligencecsm2025
Izaak Walton League of America
Salt Watch
Monitor chloride levels in local streams.
Multiple locations, including yours!
- Ongoing
Citizen ScienceOcean Water MarineEcology & EnvironmentEducationcsm2025earth2025csm2026road saltsaltwaterway
Los Angeles Astronomical Society
Santa Monica Sidewalk Astronomy on the Beach
Santa Monica Boardwalk Hollister CA
- December 20, 2025 at 11:30 PM through 11:30 PM
CommunityAstronomy & Space
Baton Rouge Astronomical Society
Sidewalk Astronomy
Perkins Rowe Shopping Center LA
- December 31, 2025 at 12:00 AM through 12:00 AM
CommunityAstronomy & Space
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