NASA's Roman Mission Will Probe Galaxy's Core for Hot Jupiters, Brown Dwarfs (VIDEO)

NASA/Goddard Space Flight Center

Caption

Illustration depicting a brown dwarf, which range from about 4,000 to 25,000 times Earth's mass. They're too heavy to be characterized as planets, but not quite massive enough to undergo nuclear fusion in their cores like stars. Watch on YouTube: https://www.youtube.com/watch?v=pOthh7_oJxQ Download in HD: https://svs.gsfc.nasa.gov/13795

Credit

NASA's Goddard Space Flight Center

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