NASA Volunteers Double Known Population of Brown Dwarfs

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NASA

A new paper from NASA’s Backyard Worlds: Planet 9 project announces that volunteers have essentially doubled the number of known brown dwarfs, with over 3,000 new discoveries made over the past 10 years since the project began. Brown dwarfs are balls of gas the size of Jupiter, less massive than stars. There’s one for every three or four stars near the Sun.