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 MarineFoodAgricultureyour wild lifetop viewed 2021summer reading 2021antpicnicant picnictop 22 in 2022winterwildlifeantsdunn labcookiestop2022nutritionnorth carolinafallrob dunnoutsidegirl scoutsdietnutrientsrob dunn labsummerfunspring

NASA / Zooniverse

Backyard Worlds: Planet 9

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

Anywhere

Ongoing

Citizen ScienceAstronomy & Spaceplanetsbrown dwarfsnasa-sciactsolar systemtop viewed 2021wisenasa_nasaplanet ninestarsnasa-supported

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 & Outdoorscicadasinsectstop viewed 2021cicadainsectperiodical cicadas

Crowd the Tap

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

Multiple locations, including yours!

Ongoing

Citizen ScienceHealth & Medicinehealthtop viewed 2021top2022waterpipestop 22 in 2022

Happywhale

Global Whale Tracking with Happywhale

Track individual whales and learn their stories.

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Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsOcean Water MarineNature & Outdoorsmigrationidentificationseanature & outdoorsstrandingphotowhale watchingresearchmarine mammalorcasphotographystorieswhalewhalescetaceantop viewed 2021conservationtracksea mammalsea animalorcakiller whalemammalsoceansnon-invasivegpsocean-dwellingwhale watchtrackingstorytellingcitizen scienceminkeunderwatermapoceanhumpbackfin whalephoto idminke whalemammalwhale biologyanimalrescuehumpbacksmappingwildlifewhale migrationphoto identificationecology & environmentmarine mammalogydolphinstorywhale trackingfin

NSF’s NOIRLab

Globe at Night

To understand the impacts of light pollution.

Anywhere

Ongoing

Citizen ScienceAstronomy & SpaceNature & OutdoorsEcology & Environmentcsm2026librarygirl scoutslight pollutionstarnatop2022top viewed 2021top 22 in 2022csm-featured

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 & Weathercsm2025atmospheredustnasanasa-sciactthe globe programweathernasa gotop viewed 2021top2022girl scoutscsm-featureddust stormscsm2026earth2025globeclimate_nasacloudsnasa-supportedapptop 22 in 2022

iNaturalist

Share observations of biodiversity.

Anywhere

Ongoing

Citizen ScienceOcean Water MarineInsects & PollinatorsNature & OutdoorsBiologyAnimalsEcology & Environmentbiodiversitycsm-featuredtop 22 in 2022librarynaturetop viewed 2021ec2020museuminsect populationssummer reading 2021apptop2022gardencsm2026girl scoutsnaturalistandroidiphone

ISeeChange

We’re making a record of climate change impacts.

Anywhere

Ongoing

Citizen ScienceClimate & WeatherDisaster ResponseEcology & Environmenturban heatcitizen sciencecitizen journalismweatherbeachescsm-featuredmarine environmentmappingfloodtop 22 in 2022treesnew yorkwnycclimate scienceclimate changesatellitesbackyardearthnasajulia kumari drapkincrowdsourcingcommunity engagementsea level riselos angelesgirl scoutscitynprremote sensingsciencesensorsheatearth sciencetrees urban street forest mapcarbonstoriesmiamiraintop2022coastal changeneighborhoodclimate educationradioresiliencemountainsearth2025jet propulsion laboratoryjournalismfuntop viewed 2021photographynew orleanscommunitysnowcsm2025yale climate connectionscitizen science waterdroughtbirdsnasa orbiting carbon observatoryclimatepublic mediaurban heat island

Marine Debris Tracker

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

Anywhere

Ongoing

Citizen ScienceGeology & Earth ScienceEcology & EnvironmentOcean Water MarineNature & OutdoorsEducationgirl scoutsecology & environmentmarine debristrackerdebrismarinewaste managementcsm-featuredearth2025plastic pollutiontop viewed 2021csm2026csm2025litternature & outdoorsappocean pollution

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