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NASA / Zooniverse
Backyard Worlds: Cool Neighbors
Discover the Sun’s most extreme cosmic neighbors.
Anywhere
- Ongoing
Citizen ScienceAstronomy & Spacenasa-sciactbrown dwarfsexoplanetsstars_nasaastronomyspaceresearchnasa-supported
brown dwarfs
within 25 miles
Apr 27, 2026
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NASA / Zooniverse
Backyard Worlds: Planet 9
Search the realm beyond Neptune for new brown dwarfs and planets.
Anywhere
- Ongoing
Citizen ScienceAstronomy & Spaceplanetsnasasolar systemnasa-sciact_nasastarswisebrown dwarfsplanet ninenasa-supportedtop viewed 2021
1