top viewed 2021

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May 22, 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 & Outdoorsnutritionnutrientspicnicfallrob dunn labant picnicanttop viewed 2021summertop2022dietspringrob dunndunn labnorth carolinaantswildlifegirl scoutstop 22 in 2022funoutsidesummer reading 2021your wild lifewintercookies

NASA / Zooniverse

Backyard Worlds: Planet 9

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

Anywhere

Ongoing

Citizen ScienceAstronomy & Spacenasa-sciact_nasaplanet ninenasanasa-supportedbrown dwarfssolar systemtop viewed 2021planetswisestars

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 & Outdoorsinsectcicadasinsectstop viewed 2021periodical cicadascicada

Crowd the Tap

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

Multiple locations, including yours!

Ongoing

Citizen ScienceHealth & Medicinehealthtop2022top 22 in 2022top viewed 2021waterpipes

Happywhale

Global Whale Tracking with Happywhale

Track individual whales and learn their stories.

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Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsOcean Water MarineNature & Outdoorsphoto idtrackstorymappingocean-dwellingrescuewhalekiller whalewhalesminkestorytellingwhale trackingminke whalecitizen scienceanimalwildlifeecology & environmentoceanwhale migrationmammalscetaceanfinphoto identificationorcassea mammalnon-invasivegpsstoriesphotographynature & outdoorsstrandingmarine mammalunderwaterdolphinwhale biologymapconservationoceanssea animalfin whalehumpbackhumpbacksphotomammalmarine mammalogyseaidentificationresearchtop viewed 2021migrationtrackingwhale watchingwhale watchorca

NSF’s NOIRLab

Globe at Night

To understand the impacts of light pollution.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentNature & OutdoorsAstronomy & Spacecsm-featuredna_mostop viewed 2021starlight pollutiongirl scoutstop2022csm2026librarytop 22 in 2022

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 & Weathernasa-supportedappdust stormstop 22 in 2022atmospherecsm2026weatherthe globe programdustcsm2025csm-featuredearth2025globenasa-sciactclimategirl scoutsnasacloudstop2022top viewed 2021_nasanasa go

iNaturalist

Share observations of biodiversity.

Anywhere

Ongoing

Citizen ScienceOcean Water MarineInsects & PollinatorsNature & OutdoorsBiologyAnimalsEcology & Environment_mostop viewed 2021top2022top 22 in 2022appgardensummer reading 2021ec2020csm2026naturelibrarymuseuminsect populationsiphonegirl scoutsbiodiversitynaturalistcsm-featuredandroid

ISeeChange

We’re making a record of climate change impacts.

Anywhere

Ongoing

Citizen ScienceClimate & WeatherDisaster ResponseEcology & Environmentcsm-featuredcsm2025communitysnowsensorsresilienceearthcommunity engagementfuntreesnew orleansradiosea level risetop viewed 2021crowdsourcingnasamiamisciencejet propulsion laboratorycitizen scienceneighborhoodearth sciencetop 22 in 2022heatcitizen science watercoastal changephotographypublic mediaclimate educationclimate changeearth2025weathernew yorkbirdsjulia kumari drapkinnprfloodremote sensingurban heatbackyardsatelliteslos angelesmountainsdroughtjournalismclimate sciencemarine environmentgirl scoutsurban heat islandbeachesstoriestrees urban street forest mapclimateyale climate connectionsraincarboncitycitizen journalismwnyctop2022mappingnasa orbiting carbon observatory

Marine Debris Tracker

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

Anywhere

Ongoing

Citizen ScienceGeology & Earth ScienceEcology & EnvironmentOcean Water MarineNature & OutdoorsEducationlittercsm-featuredocean pollutioncsm2025marinemarine debristop viewed 2021ecology & environmentplastic pollutiondebrisapptrackerearth2025girl scoutswaste managementnature & outdoorscsm2026

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