Using NASA’s SPHEREx spacecraft, astronomers have studied a horde of mysterious "failed stars," or brown dwarfs, not-so-stellar loners that wander the darkness of space alone.
Source: www.space.com

Using NASA’s SPHEREx spacecraft, astronomers have studied a horde of mysterious "failed stars," or brown dwarfs, not-so-stellar loners that wander the darkness of space alone.
Source: www.space.com
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