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NASA / Zooniverse
Dark Energy Explorers
Help measure dark energy when the universe was just ~2-3 billion years old.
Anywhere
- Ongoing
Citizen ScienceAstronomy & Space_nasanasa-sciactcsm2025nasa-supported_moscsm25spacecsm-featuredcsm2026
_mos
within 25 miles
Aug 25, 2026
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NSF’s NOIRLab
Globe at Night
To understand the impacts of light pollution.
Anywhere
- Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsAstronomy & Spacetop viewed 2021star_mostop2022light pollutionnacsm-featuredlibrarytop 22 in 2022girl scoutscsm2026
iNaturalist
iNaturalist
Share observations of biodiversity.
Anywhere
- Ongoing
Citizen ScienceOcean Water MarineInsects & PollinatorsNature & OutdoorsBiologyAnimalsEcology & Environmentlibrarynaturalistiphonecsm-featured_mosinsect populationssummer reading 2021disneyappcsm2026top 22 in 2022top viewed 2021museumgirl scoutsec2020gardennaturebiodiversitytop2022android
Gillan Lab at Trinity College Dublin
Neureka
Improve mental health and dementia research
Anywhere
- Ongoing
Citizen ScienceHealth & MedicinePsychologyBiologybraindepressioncognitionbrain healthcsm-featuredalzheimerstop 22 in 2022top viewed 2021csm2026mental health_mostop2022gamescsm2025dementianeurosciencesmartphonecompulsive habits
The Makeability Lab at the University of Washington
Project Sidewalk
Collect an open dataset on sidewalk accessibility in cities
Anywhere
- Ongoing
Citizen ScienceComputers & TechnologyTransportationHealth & Medicinewheelchairmachine learningsidewalkcrowdsourcing_moscsm-featuredopen sourceaiaccessibilitycsm2025citizen sciencecsm2026open datavirtualartificial intelligencepedestriancomputer vision
Zooniverse
Rubin Comet Catchers
Discover comets and active asteroids in Rubin survey images
Anywhere
- Ongoing
Citizen ScienceAstronomy & Spacecomets_mos_nasaspacecsm-featuredasteroidsrubincsm2026
Human Computation Institute
Stall Catchers
Speed up Alzheimer’s research
Anywhere
- Ongoing
Citizen ScienceHealth & MedicineBiologyChemistrysofa projectsclassificationgamershuman computation institute_mosimage recognitionscience learningcsm-featuredneuroscienceblood vesselsalzheimercrushalzmachine learningnavisual skillsmiddle schoolstemcirculatory systemstallsonline gamesteamcitscibiocurriculumhealthendalzdementiahcompcsm2026biomedicalalzcitscitrophycureinformal learningcell biologycrowdcloudonlinedrugdiscoverycitsci4alzcitscigamescirculationbraingames4goodcatchersgamingtop viewed 2021top2022crowdpowercognitivealzheimer's diseasediseasetop 22 in 2022eyesonalzstallcatchershumancomputationcrowdsourcingeducation
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