top viewed 2021

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May 31, 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 & Outdoorswildlifeant picnicantfallfunspringwinternutrientsnorth carolinanutritioncookiestop2022girl scoutssummer reading 2021your wild lifetop 22 in 2022antstop viewed 2021rob dunnpicnicsummeroutsiderob dunn labdunn labdiet

NASA / Zooniverse

Backyard Worlds: Planet 9

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

Anywhere

Ongoing

Citizen ScienceAstronomy & Spaceplanetsnasa-sciactstarsplanet ninebrown dwarfstop viewed 2021nasa-supportednasasolar system_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 & Outdoorsinsectcicadastop viewed 2021cicadainsectsperiodical cicadas

Crowd the Tap

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

Multiple locations, including yours!

Ongoing

Citizen ScienceHealth & Medicinehealthtop 22 in 2022waterpipestop viewed 2021top2022

Happywhale

Global Whale Tracking with Happywhale

Track individual whales and learn their stories.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentBiologyAnimalsOcean Water MarineNature & Outdoorsfin whalecitizen sciencemappingstoryphotographyidentificationminke whalewhalewildlifewhale trackingcetaceandolphintop viewed 2021seaphoto idrescuehumpbacksstoriestrackingnature & outdoorsmammalsstrandingmarine mammalogyresearchwhale migrationoceansecology & environmentconservationsea mammalkiller whalemammalmigrationocean-dwellingunderwaterorcasanimalstorytellingoceangpswhale biologyfinorcaphoto identificationmapmarine mammaltracknon-invasivesea animalhumpbackphotowhale watchwhale watchingwhalesminke

NSF’s NOIRLab

Globe at Night

To understand the impacts of light pollution.

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentNature & OutdoorsAstronomy & Spacenacsm-featured_mostop2022top viewed 2021top 22 in 2022light pollutionlibrarycsm2026girl scoutsstar

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-sciactthe globe program_nasagirl scoutscloudsclimatenasa goappcsm-featuredweatherdusttop 22 in 2022globetop2022earth2025atmospheredust stormscsm2026nasa-supportednasatop viewed 2021csm2025

iNaturalist

Share observations of biodiversity.

Anywhere

Ongoing

Citizen ScienceOcean Water MarineInsects & PollinatorsNature & OutdoorsBiologyAnimalsEcology & Environmentec2020summer reading 2021_moscsm2026gardennaturalistiphonenaturetop 22 in 2022top2022appinsect populationscsm-featuredmuseumandroidtop viewed 2021girl scoutsbiodiversitylibrary

ISeeChange

We’re making a record of climate change impacts.

Anywhere

Ongoing

Citizen ScienceClimate & WeatherDisaster ResponseEcology & Environmentjulia kumari drapkindroughtcitizen sciencelos angelesweathertop2022csm-featurednasa orbiting carbon observatoryresiliencemarine environmentmappingtrees urban street forest mapradiopublic mediacrowdsourcingsciencebeachesneighborhoodcarbonphotographyearthgirl scoutsstoriesremote sensingmiamiwnycclimateheatmountainsjet propulsion laboratorycsm2025nprsnowclimate scienceclimate changeurban heat islandcommunity engagementcitizen journalismtop viewed 2021top 22 in 2022new orleansjournalismfunsea level riserainnasacommunityyale climate connectionsbirdsclimate educationurban heatearth sciencefloodcoastal changebackyardcitizen science watertreesearth2025satellitessensorscitynew york

Marine Debris Tracker

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

Anywhere

Ongoing

Citizen ScienceGeology & Earth ScienceEcology & EnvironmentOcean Water MarineNature & OutdoorsEducationgirl scoutstop viewed 2021plastic pollutionmarine debrisocean pollutionlitterearth2025marinecsm2025debrisappcsm2026waste managementecology & environmentnature & outdoorscsm-featuredtracker

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