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NASA / Zooniverse
Backyard Worlds: Cool Neighbors
Discover the Sun’s most extreme cosmic neighbors.
Anywhere
- Ongoing
Citizen ScienceAstronomy & Spaceastronomyexoplanetsresearchspacebrown dwarfs_nasastarsnasa-sciactnasa-supported
brown dwarfs
within 25 miles
Nov 23, 2025
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NASA / Zooniverse
Backyard Worlds: Planet 9
Search the realm beyond Neptune for new brown dwarfs and planets.
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- Ongoing
Citizen ScienceAstronomy & Spaceplanetsplanet ninesolar systemnasawisetop viewed 2021nasa-sciact_nasabrown dwarfsnasa-supportedstars
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