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Planetary science

Planetary science

Planets in Alpha Centauri could be carbon-rich – if they exist

14 Mar 2022
Artist’s impression of a planet around Alpha Centauri B. The star appears as a bright object at the centre, with the edge of the planet illuminated and the companion star Alpha Centauri A in the background
Artist’s impression of a (now-disproven) candidate planet formerly thought to be orbiting the star Alpha Centauri B, which is part of the triple star system closest to Earth. (Courtesy: ESO/L. Calçada/Nick Risinger (skysurvey.org))
Planets orbiting the Sun-like stars of Alpha Centauri could be carbon-rich worlds with diamonds and

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