New study shows Earth-like worlds may be common. That's good news for scientists involved in the search for alien life. - NBCNewsMACH
— to reveal the chemical composition of the rocky fragments, which had been sucked up by the white dwarfs’ intense gravity.
What did the analysis reveal? Five out of the six white dwarfs had sucked up fragments whose chemical composition is similar to rocks on Earth, Venus and Mars . The researchers concluded that the planets that gave rise to the fragments were made of similar rock. Astronomer Caleb Scharf, director of the Columbia Astrobiology Center in New York City, praised the new research.“This is a terrific bit of astronomical detective work … neatly bringing astrophysics together with geochemistry,” he told NBC News Mach in an email.
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