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Exoplanet Could Have Clouds of Rubies, Sapphires

Clouds on the massive exoplanet HAT-P-7b could be made of rubies and sapphires, new research suggests. Writing in the journal Nature Astronomy, researchers from the University of Warwick in England say the discovery was made when observing weather patterns on the planet, which is 1,000 light years away. It is the first time weather patterns on a gas giant exoplanet have been observed, researchers said. The researchers also said they monitored likely “visually stunning” clouds that...

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