top viewed 2021

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May 3, 2026

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Rob Dunn Lab

Ant Picnic

Inform scientists about global food preferences of ants

Anywhere

Ongoing

Citizen ScienceNature & OutdoorsInsects & PollinatorsEducationEcology & EnvironmentOcean Water MarineFoodAgriculturedunn labnorth carolinarob dunnantsnutrientssummerwintersummer reading 2021top2022cookiesyour wild lifedietrob dunn labant picnicwildlifetop viewed 2021top 22 in 2022nutritionpicnicgirl scoutsoutsidefunantspringfall

NASA / Zooniverse

Backyard Worlds: Planet 9

Search the realm beyond Neptune for new brown dwarfs and planets.

Anywhere

Ongoing

Citizen ScienceAstronomy & Spacenasa-sciactplanetsbrown dwarfssolar systemnasastars_nasatop viewed 2021wisenasa-supportedplanet nine

Mount St. Joseph University

Cicada Safari

To map the distribution of periodical cicada and annual cicada emergences.

Multiple locations, including yours!

Ongoing through September 1, 2027 at 4:00 AM

Citizen ScienceInsects & PollinatorsNature & Outdoorscicadascicadainsectsperiodical cicadasinsecttop viewed 2021

Crowd the Tap

We’re creating a national inventory of tap water pipes.

Multiple locations, including yours!

Ongoing

Citizen ScienceHealth & Medicinehealthtop viewed 2021watertop2022top 22 in 2022pipes

Happywhale

Global Whale Tracking with Happywhale

Track individual whales and learn their stories.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsOcean Water MarineNature & Outdoorsunderwaterwhalegpsdolphinwhaleswhale migrationseawhale watchconservationanimalresearchstrandingkiller whalesea animalhumpbackminkerescuetrackingmarine mammalogycetaceanmarine mammaloceanstop viewed 2021oceanmappingecology & environmentwhale trackingfinminke whalephoto idmammalsorcanon-invasiveocean-dwellingwildlifenature & outdoorsmigrationmapwhale watchingstorytellingstoryorcasmammalphotographyphotohumpbackswhale biologyidentificationcitizen sciencesea mammaltrackphoto identificationfin whalestories

NSF’s NOIRLab

Globe at Night

To understand the impacts of light pollution.

Anywhere

Ongoing

Citizen ScienceAstronomy & SpaceNature & OutdoorsEcology & Environmentcsm2026top viewed 2021light pollutionlibrarytop 22 in 2022startop2022girl scoutscsm-featuredna

NASA and The GLOBE Program

GLOBE Observer: Clouds

Help scientists understand the sky from above and below.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentAstronomy & SpaceGeology & Earth ScienceOcean Water MarineNature & OutdoorsClimate & Weather_nasatop viewed 2021dust stormscsm-featureddustglobenasa-supportedcloudsappnasa-sciactcsm2025weatherearth2025the globe programnasa gotop2022climateatmospherecsm2026top 22 in 2022girl scoutsnasa

iNaturalist

Share observations of biodiversity.

Anywhere

Ongoing

Citizen ScienceOcean Water MarineInsects & PollinatorsNature & OutdoorsBiologyAnimalsEcology & Environmentec2020biodiversitylibrarygardennaturetop2022top viewed 2021naturalistgirl scoutsmuseumsummer reading 2021iphonetop 22 in 2022csm2026androidappinsect populationscsm-featured

ISeeChange

We’re making a record of climate change impacts.

Anywhere

Ongoing

Citizen ScienceClimate & WeatherDisaster ResponseEcology & Environmentbeachescsm2025miamimappingheatcommunityfloodjulia kumari drapkinclimate educationresilienceclimate sciencecommunity engagementnew yorkjet propulsion laboratorynprcarbonmountainsradioremote sensingnasasnowbackyardsatellitesneighborhoodnasa orbiting carbon observatoryyale climate connectionstop 22 in 2022coastal changeearthdroughtmarine environmentweatherphotographyjournalismlos angelesgirl scoutsearth sciencecsm-featuredtop viewed 2021sea level risesensorsclimatetrees urban street forest mappublic mediafunraintop2022crowdsourcingcitystoriesearth2025wnycurban heat islandtreesurban heatcitizen science watercitizen sciencecitizen journalismclimate changesciencebirdsnew orleans

Marine Debris Tracker

Monitor litter where you find it, from our oceans to your backyard.

Anywhere

Ongoing

Citizen ScienceGeology & Earth ScienceEcology & EnvironmentOcean Water MarineNature & OutdoorsEducationtop viewed 2021nature & outdoorsecology & environmentcsm2026ocean pollutionlittercsm2025csm-featuredmarineplastic pollutionearth2025appwaste managementgirl scoutsdebrismarine debristracker

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