top viewed 2021

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Jan 23, 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 MarineFoodAgricultureant picnicspringnutrientsdiettop viewed 2021rob dunn labdunn labtop 22 in 2022top2022nutritionoutsidepicnicgirl scoutsnorth carolinayour wild lifefallsummerwildlifeantsummer reading 2021rob dunncookiesantsfunwinter

NASA / Zooniverse

Backyard Worlds: Planet 9

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

Anywhere

Ongoing

Citizen ScienceAstronomy & Spacebrown dwarfsstarsnasaplanet ninesolar systemtop viewed 2021planetsnasa-supportedwisenasa-sciact_nasa

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 & Outdoorsinsectcicadainsectsperiodical cicadascicadastop viewed 2021

Crowd the Tap

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

Multiple locations, including yours!

Ongoing

Citizen ScienceHealth & Medicinepipeshealthtop viewed 2021top2022watertop 22 in 2022

Happywhale

Global Whale Tracking with Happywhale

Track individual whales and learn their stories.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsOcean Water MarineNature & Outdoorsidentificationunderwaterconservationwhale watchhumpbacksstoryphoto identificationmappingocean-dwellingnature & outdoorsmammalminkestrandingdolphinphoto idwhale biologysea animalanimalstoriesecology & environmentwildlifephotostorytellingsea mammalcitizen scienceorcamammalsmigrationwhale trackingmarine mammalkiller whalemapresearchrescuecetaceanoceanfingpstrackwhalehumpbacknon-invasiveminke whaletrackingmarine mammalogywhale watchingfin whaleseatop viewed 2021oceanswhalesphotographyorcaswhale migration

NSF’s NOIRLab

Globe at Night

To understand the impacts of light pollution.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentNature & OutdoorsAstronomy & Spacetop viewed 2021light pollutionlibrarytop 22 in 2022top2022nastarcsm-featuredgirl scouts

NASA and The GLOBE Program

GLOBE Observer: Clouds

Help scientists understand the sky from above and below.

Anywhere

Ongoing

Citizen ScienceGeology & Earth ScienceAstronomy & SpaceEcology & EnvironmentClimate & WeatherNature & OutdoorsOcean Water Marinecsm2025dust stormsdusttop2022appcloudsnasatop viewed 2021csm-featuredtop 22 in 2022climatethe globe programgirl scoutsnasa-supportednasa-sciact_nasaweatheratmospherenasa goglobeearth2025

iNaturalist

Share observations of biodiversity.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentAnimalsBiologyNature & OutdoorsInsects & PollinatorsOcean Water Marinenaturalistgardentop viewed 2021girl scoutsinsect populationssummer reading 2021applibrarytop 22 in 2022museumiphonecsm-featuredandroidbiodiversitynatureec2020top2022

ISeeChange

We’re making a record of climate change impacts.

Anywhere

Ongoing

Citizen ScienceClimate & WeatherDisaster ResponseEcology & Environmentgirl scoutsmarine environmentfloodcoastal changeweatherphotographycitizen journalismremote sensingtop2022earth2025climate changecommunitysensorssnownasasciencemappingmiamisatellitesnew orleansclimate educationcitizen science waterjet propulsion laboratorybackyardurban heat islandcsm-featuredlos angelestop viewed 2021storiessea level risecommunity engagementresiliencecsm2025droughtbirdsheatjournalismtop 22 in 2022carbonnasa orbiting carbon observatoryearth sciencepublic mediaclimatecityyale climate connectionsurban heatfunmountainsclimate scienceearthrainneighborhoodradiojulia kumari drapkintrees urban street forest mapnew yorkcrowdsourcingbeachesnprcitizen sciencewnyctrees

Marine Debris Tracker

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

Anywhere

Ongoing

Citizen ScienceGeology & Earth ScienceNature & OutdoorsEcology & EnvironmentOcean Water MarineEducationnature & outdoorsappdebristrackerearth2025marinecsm2025marine debrisecology & environmentplastic pollutionocean pollutiongirl scoutstop viewed 2021littercsm-featuredwaste management

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