Deep inside the Hyades star cluster, a pair of burned-out stars are
yielding clues to the presence of rocky planets that may have whirled
around them. Asteroid debris is ‘raining’ into the hot atmospheres of
these white dwarfs. Asteroids should consist of the same material that
form terrestrial planets, and seeing evidence of asteroids points to
the possibility of Earth-sized planets in the same system.
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