top viewed 2021

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Jun 24, 2026

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Rob Dunn Lab

Ant Picnic

Inform scientists about global food preferences of ants

Anywhere

Ongoing

Citizen ScienceAgricultureFoodOcean Water MarineEcology & EnvironmentEducationInsects & PollinatorsNature & Outdoorspicnicdiettop 22 in 2022nutritionnorth carolinadunn labyour wild lifefunrob dunnrob dunn labtop viewed 2021winterantssummerfallgirl scoutsantnutrientscookiessummer reading 2021top2022ant picnicspringoutsidewildlife

NASA / Zooniverse

Backyard Worlds: Planet 9

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

Anywhere

Ongoing

Citizen ScienceAstronomy & Spacenasa-supportedstarsbrown dwarfsnasa-sciactplanet nineplanetssolar system_nasawisetop viewed 2021nasa

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 & Outdoorscicadastop viewed 2021insectscicadaperiodical cicadasinsect

Crowd the Tap

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

Multiple locations, including yours!

Ongoing

Citizen Sciencetop2022top 22 in 2022waterhealthpipestop viewed 2021

Happywhale

Global Whale Tracking with Happywhale

Track individual whales and learn their stories.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsOcean Water MarineNature & Outdoorsidentificationdolphinkiller whaleorcasphotoanimalconservationmapwildlifenature & outdoorssea mammalnon-invasivefin whaleecology & environmentphoto idmigrationstorytellingminkewhale trackingwhale biologyphotographywhalehumpbackmammalsrescuehumpbacksmappingtrackingsea animalwhale watchingmammalmarine mammalfinphoto identificationstoriesstrandingmarine mammalogyseaoceanswhale watchtrackwhalescetaceanunderwaterstorywhale migrationminke whalegpsresearchoceanorcaocean-dwellingtop viewed 2021citizen science

NSF’s NOIRLab

Globe at Night

To understand the impacts of light pollution.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentNature & OutdoorsAstronomy & Spacelibrarytop 22 in 2022csm2026top2022na_moscsm-featuredgirl scoutsstartop viewed 2021light pollution

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 & Weathernasa-sciactcloudsthe globe program_nasacsm2026weathercsm-featuredglobeearth2025top 22 in 2022nasa-supportedcsm2025appdustclimategirl scoutsnasanasa gotop viewed 2021atmospheretop2022dust storms

iNaturalist

Share observations of biodiversity.

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Ongoing

Citizen ScienceOcean Water MarineInsects & PollinatorsNature & OutdoorsBiologyAnimalsEcology & Environmentbiodiversitynaturecsm-featuredtop viewed 2021girl scoutsnaturalistinsect populationsiphoneandroidappcsm2026_mosgardenmuseumec2020top 22 in 2022top2022librarysummer reading 2021

ISeeChange

We’re making a record of climate change impacts.

Anywhere

Ongoing

Citizen ScienceClimate & WeatherDisaster ResponseEcology & Environmentmappingcsm2025earthfungirl scoutswnycdroughtmountainscitizen science waterurban heatcitizen scienceremote sensingcrowdsourcingcsm-featuredclimate sciencejet propulsion laboratorysciencemarine environmentpublic mediasnowtop viewed 2021top2022satellitesnasa orbiting carbon observatoryurban heat islandcommunity engagementnasanew orleanscityfloodcommunityjulia kumari drapkinstoriesearth2025sea level risecoastal changeheatclimate changerainradioclimatenprtrees urban street forest mapneighborhoodbackyardcarbontreestop 22 in 2022beachesclimate educationsensorslos angelesjournalismbirdsearth scienceyale climate connectionsweathernew yorkphotographymiamicitizen journalismresilience

Marine Debris Tracker

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

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Ongoing

Citizen ScienceGeology & Earth ScienceEcology & EnvironmentOcean Water MarineNature & OutdoorsEducationmarinelittercsm2026appcsm2025top viewed 2021debrismarine debriscsm-featurednature & outdoorstrackerecology & environmentwaste managementocean pollutiongirl scoutsearth2025plastic pollution

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