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Planetary science

Planetary science

Liquid metal, ruby and sapphire could rain down on huge exoplanet

19 Mar 2022
WASP-121b
Hot and cold: artist's impression of the exoplanet WASP-121b and its host star. (Courtesy: NASA, ESA, and G Bacon (STSci))
Liquid metal, ruby and sapphire could rain down on one hemisphere of a blisteringly hot giant exopla

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Rob Lea is a science writer based in Liverpool, UK, Twitter @sciencef1rst
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