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Submission + - 4 White Dwarf Stars Caught in the Act of Consuming 'Earth-like' Exoplanets (naturenplanet.com)

fishmike writes: "University of Warwick astrophysicists have pinpointed four white dwarfs surrounded by dust from shattered planetary bodies which once bore striking similarities to the composition of the Earth.

Using the Hubble Space Telescope for the biggest survey to date of the chemical composition of the atmospheres of white dwarf stars, the researchers found that the most frequently occurring elements in the dust around these four white dwarfs were oxygen, magnesium, iron and silicon — the four elements that make up roughly 93 per cent of the Earth."

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4 White Dwarf Stars Caught in the Act of Consuming 'Earth-like' Exoplanets

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