Brown Dwarf: A Star You Could Touch
Brown Dwarfs: Failed Stars Resembling Planets
Sometimes collapsing clouds of gas and dust don't quite manage to make it as stars. These objects, known as brown dwarfs, have many of the elements of their more famous siblings but lack the mass needed to jumpstart nuclear fusion in their core. Because brown dwarfs never burn fusion at their core, scientists sometimes refer to them as "failed stars."
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A Star You Could Touch: Cold Stars