top viewed 2021

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Sep 21, 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 MarineFoodAgriculturenutrientsnutritionfallfunwildlifegirl scoutsspringtop 22 in 2022top viewed 2021north carolinayour wild lifewinterdietant picnicrob dunnantdata literacyrob dunn labantsdunn labtop2022picnicinsectsoutsidecookiesscientific methodsummersummer reading 2021

NASA / Zooniverse

Backyard Worlds: Planet 9

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

Anywhere

Ongoing

Citizen ScienceAstronomy & Spaceplanet ninenasa-sciactnasastarstop viewed 2021planetsnasa-supportedsolar systembrown dwarfs_nasawise

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 & Outdoorsinsectinsectsperiodical cicadastop viewed 2021cicadacicadas

Crowd the Tap

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

Multiple locations, including yours!

Ongoing

Citizen Sciencepipestop viewed 2021top 22 in 2022top2022healthwater

Happywhale

Global Whale Tracking with Happywhale

Track individual whales and learn their stories.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsOcean Water MarineNature & Outdoorsphotographystorycetaceanwhale biologymigrationmappingnon-invasivefinidentificationwhale watchingphoto identificationnature & outdoorsconservationwildlifeoceanwhale trackingstrandingdolphintrackingcitizen scienceresearchwhale watchunderwaterminke whalestorytellingphototop viewed 2021oceanssea mammalstoriesseakiller whalehumpbackminkeecology & environmentorcastrackfin whalerescuemarine mammalogyorcaanimalwhalemarine mammalsea animalocean-dwellinghumpbacksmammalsmapwhalesphoto idgpsmammalwhale migration

NSF’s NOIRLab

Globe at Night

To understand the impacts of light pollution.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentNature & OutdoorsAstronomy & Spacepollution_mostop viewed 2021policytop 22 in 2022starnacsm-featuredlight pollutiontop2022astronomylibrarycsm2026girl scouts

NASA and The GLOBE Program

GLOBE Observer: Clouds

Help scientists understand the sky from above and below.

Anywhere

Ongoing

Citizen ScienceClimate & WeatherNature & OutdoorsOcean Water MarineGeology & Earth ScienceAstronomy & SpaceEcology & Environment_nasanasaearth2025dustmeteorologydust stormsnasa gocsm2025globecsm-featurednasa-supporteddata collectionatmospherecsm2026climateappgirl scoutsthe globe programnasa-sciacttop viewed 2021weathertop 22 in 2022cloudstop2022

iNaturalist

Share observations of biodiversity.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentAnimalsBiologyNature & OutdoorsInsects & PollinatorsOcean Water Marineinsect populationslibraryecologybiodiversitymuseumdisney_mostop2022naturalistandroidcsm2026ec2020top viewed 2021girl scoutscsm-featuredsummer reading 2021top 22 in 2022natureappiphonegarden

ISeeChange

We’re making a record of climate change impacts.

Anywhere

Ongoing

Citizen ScienceClimate & WeatherDisaster ResponseEcology & Environmentjulia kumari drapkinmountainsmarine environmentcsm-featuredbirdslos angelessea level risegirl scoutsurban heatmiamicsm2025treescommunityclimate educationclimatecityresilienceclimate changeradiopublic mediarainclimate scienceneighborhoodnew yorkdroughtcrowdsourcingbackyardremote sensingsensorstop viewed 2021funearth sciencecarbonnprcommunity engagementbeachesfloodheatsciencesnowstoriesnew orleansphotographycitizen journalismjet propulsion laboratoryearthsatellitestrees urban street forest mapjournalismtop2022wnyctop 22 in 2022citizen sciencecitizen science waternasanasa orbiting carbon observatoryweathermappingurban heat islandcoastal changeearth2025yale climate connections

Marine Debris Tracker

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

Anywhere

Ongoing

Citizen ScienceGeology & Earth ScienceEcology & EnvironmentOcean Water MarineNature & OutdoorsEducationcsm2025plastic pollutioncsm-featuredcsm2026ecology & environmentmarine debrisnature & outdoorswaste managementdata collectionearth2025litterocean pollutionapptrackermarinegirl scoutsdebristop viewed 2021

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