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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 & Spacenasa-supportednasa-sciact_nasacsm25spacecsm2026_moscsm2025csm-featured
_mos
within 25 miles
May 19, 2026
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NSF’s NOIRLab
Globe at Night
To understand the impacts of light pollution.
Anywhere
- Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsAstronomy & Spacelibrarycsm-featuredcsm2026top viewed 2021girl scoutslight pollutiontop2022_mosstartop 22 in 2022na
iNaturalist
iNaturalist
Share observations of biodiversity.
Anywhere
- Ongoing
Citizen ScienceEcology & EnvironmentAnimalsBiologyNature & OutdoorsInsects & PollinatorsOcean Water Marinecsm2026girl scoutstop2022naturalisttop viewed 2021_mostop 22 in 2022museumsummer reading 2021gardenec2020applibrarycsm-featuredbiodiversityiphoneinsect populationsnatureandroid
Gillan Lab at Trinity College Dublin
Neureka
Improve mental health and dementia research
Anywhere
- Ongoing
Citizen ScienceBiologyPsychologyHealth & Medicinecsm-featured_moscompulsive habitssmartphonegamescsm2025alzheimerscsm2026cognitionmental healthtop2022top viewed 2021depressionbrain healthdementiabrainneurosciencetop 22 in 2022
The Makeability Lab at the University of Washington
Project Sidewalk
Collect an open dataset on sidewalk accessibility in cities
Anywhere
- Ongoing
Citizen ScienceHealth & MedicineTransportationComputers & Technologymachine learningartificial intelligencecitizen sciencewheelchaircomputer vision_moscsm-featuredaccessibilityopen datavirtualopen sourcecsm2025pedestriancrowdsourcingaicsm2026sidewalk
Zooniverse
Rubin Comet Catchers
Discover comets and active asteroids in Rubin survey images
Anywhere
- Ongoing
Citizen ScienceAstronomy & Spacecometscsm-featuredrubinasteroidsspacecsm2026_mos
Human Computation Institute
Stall Catchers
Speed up Alzheimer’s research
Anywhere
- Ongoing
Citizen ScienceChemistryBiologyHealth & Medicinetop 22 in 2022curealzheimer's diseasecsm2026stemmachine learningclassificationhealthcirculationgamingdiseasegames4goodcell biologyonlinecurriculumsofa projectscitscitrophyhuman computation institutedrugdiscovery_moscognitivecatcherscrushalzbiomedicalinformal learningeducationsteamimage recognitioncitscibiobraincitscigamesvisual skillscrowdcloudhcompblood vesselscitsci4alzalzheimercsm-featuredmiddle schooleyesonalzgamersscience learningnaonline gamehumancomputationcrowdpowerstallcatchersstallscirculatory systemendalztop viewed 2021top2022neurosciencealzcrowdsourcingdementia
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