U.S. Environmental Protection Agency (EPA)

AirMapper: DIY Air Quality Monitoring

Monitor and understand local air quality

Anywhere

Ongoing

Citizen ScienceClimate & WeatherEcology & EnvironmentHealth & Medicineenvironmental sciencecommunity scienceair sensorsair pollutionmappingstem educationdata collectioncarbon dioxidediyair qualityparticulate matterenvironmental monitoringatmospheric sciencesensors

Astronomy On Tap

Astronomy on Tap Bristol: Celtic Mythology and Exoplanet Clouds

The Lansdown

November 11, 2026 at 6:00 PM through 9:00 PM

Community

Astronomy On Tap

Astronomy on Tap Groningen | November Edition

Kroeg van Klaas Groningen

November 9, 2026 at 7:15 PM through 9:00 PM

Community

NOAA

Citizen Weather Observer Program

Help make citizens’ weather data available for weather services

Anywhere

Ongoing

Citizen ScienceComputers & TechnologyClimate & Weather

NASA / Zooniverse

Cloudspotting On Mars

Spot clouds in Mars’ atmosphere.

Anywhere

Ongoing

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Cloudspotting on Mars: Shapes

Help scientists discover the patterns and distributions of clouds on Mars.

Anywhere

Ongoing

Citizen ScienceAstronomy & Spaceclimatenasamarscloudsatmosphere

SETI Institute + Unistellar Citizen Science

Cometary Activity

Understand cometary behavior and structure

Anywhere

Ongoing

Citizen ScienceAstronomy & Space

Cora Hartshorn Arboretum and Bird Sanctuary

Connect communities with local nature and birdlife

Short Hills, New Jersey

Ongoing

Citizen ScienceEcology & EnvironmentNature & Outdoorscommunitybirdstrailsarboretumlocal ecosystemseducation

Coral Reef Monitoring Data Portal

Support, enhance, and widen the scope of coral monitoring.

Multiple locations, including yours!

Ongoing

Citizen ScienceBiologyOcean Water MarineAnimalsNature & OutdoorsEcology & EnvironmentComputers & Technologyoceancoral reefshawaii

DRAW McGill

Help us uncover the story of Montreal’s evolving climate.

Anywhere

Ongoing

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U.S. Environmental Protection Agency (EPA)

AirMapper: DIY Air Quality Monitoring

Astronomy On Tap

Astronomy on Tap Bristol: Celtic Mythology and Exoplanet Clouds

Astronomy On Tap

Astronomy on Tap Groningen | November Edition

NOAA

Citizen Weather Observer Program

NASA / Zooniverse

Cloudspotting On Mars

Cloudspotting on Mars: Shapes

SETI Institute + Unistellar Citizen Science

Cometary Activity

Cora Hartshorn Arboretum and Bird Sanctuary

Cora Hartshorn Arboretum and Bird Sanctuary

Coral Reef Monitoring Data Portal

DRAW McGill

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