top viewed 2021

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Feb 12, 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 & Outdoorsantssummer reading 2021fallnorth carolinanutritionoutsidedunn labdiettop2022springrob dunngirl scoutspicnicrob dunn labyour wild lifecookieswintersummerant picnictop 22 in 2022funanttop viewed 2021nutrientswildlife

NASA / Zooniverse

Backyard Worlds: Planet 9

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

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Ongoing

Citizen ScienceAstronomy & Spacetop viewed 2021nasa-supported_nasanasa-sciactsolar systemnasaplanet ninestarswisebrown dwarfsplanets

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 2021insectcicadaperiodical cicadas

Crowd the Tap

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

Multiple locations, including yours!

Ongoing

Citizen ScienceHealth & Medicinetop 22 in 2022pipestop2022top viewed 2021waterhealth

Happywhale

Global Whale Tracking with Happywhale

Track individual whales and learn their stories.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsOcean Water MarineNature & Outdoorsrescuewhale trackingphotographywhale migrationhumpbackminke whalecetaceanunderwateranimalwhale watchingecology & environmentnature & outdoorsocean-dwellingfin whaleconservationoceansstorytellingoceanmarine mammalstorymigrationorcaswhalesgpssea mammalwhale biologymappingmaptrackwildlifetop viewed 2021identificationstoriesstrandingorcakiller whalehumpbacksfincitizen sciencewhalemammalsminkemammalphoto identificationnon-invasivedolphinsea animalwhale watchseaphoto idphototrackingmarine mammalogyresearch

NSF’s NOIRLab

Globe at Night

To understand the impacts of light pollution.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentNature & OutdoorsAstronomy & Spacelight pollutiontop2022librarytop 22 in 2022csm-featuredtop viewed 2021stargirl scoutsna

NASA and The GLOBE Program

GLOBE Observer: Clouds

Help scientists understand the sky from above and below.

Anywhere

Ongoing

Citizen ScienceOcean Water MarineNature & OutdoorsClimate & WeatherEcology & EnvironmentAstronomy & SpaceGeology & Earth Scienceearth2025girl scoutsappdust stormsglobeatmospherenasa-sciactthe globe programcsm-featureddustweathercloudsnasa goclimate_nasatop 22 in 2022csm2025nasa-supportednasatop2022top viewed 2021

iNaturalist

Share observations of biodiversity.

Anywhere

Ongoing

Citizen ScienceOcean Water MarineInsects & PollinatorsNature & OutdoorsBiologyAnimalsEcology & Environmentcsm-featuredtop viewed 2021naturalistmuseumnatureandroidec2020appbiodiversitygirl scoutstop 22 in 2022librarysummer reading 2021iphonetop2022gardeninsect populations

ISeeChange

We’re making a record of climate change impacts.

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Ongoing

Citizen ScienceClimate & WeatherDisaster ResponseEcology & Environmentnasacsm-featuredresiliencecityurban heatyale climate connectionsfloodneighborhoodsensorsmiamiearth2025birdsfunbackyardurban heat islanddroughtsnownew orleansclimateweathernasa orbiting carbon observatorycarbonjulia kumari drapkinmappingnew yorkcommunitysciencecoastal changesatellitesclimate educationremote sensingcitizen sciencecsm2025nprwnyctop2022heatmarine environmentmountainscitizen science watergirl scoutsclimate changecommunity engagementtop viewed 2021jet propulsion laboratorylos angelesrainbeachesphotographytrees urban street forest mapcitizen journalismtreestop 22 in 2022journalismcrowdsourcingpublic mediaearthstoriesclimate scienceradiosea level riseearth science

Marine Debris Tracker

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

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Ongoing

Citizen ScienceGeology & Earth ScienceNature & OutdoorsEcology & EnvironmentOcean Water MarineEducationlitterwaste managementplastic pollutiongirl scoutsdebrismarinecsm-featuredappearth2025ocean pollutionecology & environmentcsm2025marine debristop viewed 2021nature & outdoorstracker

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