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Sapphires and Rubies in the Sky

19 Dec 2018, 17:08 UTC
Sapphires and Rubies in the Sky Thibaut Roger

Researchers at the Universities of Zurich and Cambridge have discovered a new, exotic class of planets outside our solar system. These so-called super-Earths were formed at high temperatures close to their host star and contain high quantities of calcium, aluminium and their oxides – including sapphire and ruby.

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