top viewed 2021

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Jan 20, 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 MarineFoodAgricultureantant picnicspringsummer reading 2021top 22 in 2022summergirl scoutstop viewed 2021nutrientsyour wild lifedietrob dunn labantsfunwinteroutsiderob dunntop2022fallwildlifenutritionnorth carolinacookiespicnicdunn lab

NASA / Zooniverse

Backyard Worlds: Planet 9

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

Anywhere

Ongoing

Citizen ScienceAstronomy & Spacesolar systemwiseplanet nine_nasabrown dwarfsstarsnasanasa-sciactnasa-supportedtop viewed 2021planets

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 & Outdoorsperiodical cicadastop viewed 2021cicadasinsectcicadainsects

Crowd the Tap

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

Multiple locations, including yours!

Ongoing

Citizen ScienceHealth & Medicinepipeshealthtop2022top 22 in 2022top viewed 2021water

Happywhale

Global Whale Tracking with Happywhale

Track individual whales and learn their stories.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsOcean Water MarineNature & Outdoorsconservationstorycitizen sciencehumpbacksgpskiller whalewhale trackingidentificationnon-invasiveorcaphoto identificationdolphinseawhalestrackingocean-dwellingunderwaterminke whalehumpbackwhale watchingresearchmarine mammalanimalmaporcasstorytellingmammalssea mammalwhale watchphotomigrationsea animalnature & outdoorsmarine mammalogyoceanmammalwhale biologystorieswhalephotographystrandingphoto idtrackminkerescuemappingfin whalewildlifewhale migrationcetaceanfinoceansecology & environmenttop viewed 2021

NSF’s NOIRLab

Globe at Night

To understand the impacts of light pollution.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentNature & OutdoorsAstronomy & Spacelight pollutionlibrarytop 22 in 2022top2022top viewed 2021nacsm-featuredstargirl 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 Marinegirl scoutsdust stormsnasa gotop 22 in 2022appatmospheretop viewed 2021climatenasa-sciactcsm-featurednasathe globe programearth2025dustglobecsm2025nasa-supportedweather_nasacloudstop2022

iNaturalist

Share observations of biodiversity.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentAnimalsBiologyNature & OutdoorsInsects & PollinatorsOcean Water Marinegardensummer reading 2021top viewed 2021top2022biodiversityiphonenaturelibrarynaturalistinsect populationsandroidec2020appmuseumgirl scoutscsm-featuredtop 22 in 2022

ISeeChange

We’re making a record of climate change impacts.

Anywhere

Ongoing

Citizen ScienceClimate & WeatherDisaster ResponseEcology & Environmentnasa orbiting carbon observatoryfunsciencemarine environmentpublic medianew yorkurban heat islandcarbonearthlos angelesclimatecsm-featuredbeachescoastal changeclimate scienceremote sensingclimate changegirl scoutsbackyardjournalismtop viewed 2021birdsmappingyale climate connectionsnprheatsensorsdroughtsatellitesnasatreesmiamiphotographynew orleansurban heatearth2025climate educationrainneighborhoodcitizen science waterstoriesresiliencesnowweathersea level riseradiomountainstrees urban street forest mapearth sciencejulia kumari drapkincommunity engagementcommunitycitizen journalismcsm2025citizen sciencetop 22 in 2022jet propulsion laboratorytop2022cityfloodwnyccrowdsourcing

Marine Debris Tracker

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

Anywhere

Ongoing

Citizen ScienceGeology & Earth ScienceNature & OutdoorsEcology & EnvironmentOcean Water MarineEducationwaste managementcsm-featuredgirl scoutstop viewed 2021debristrackerearth2025marinemarine debrisnature & outdoorsplastic pollutionocean pollutionapplitterecology & environmentcsm2025

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