A Very Rare Planet Discovered. Less Massive than Neptune, Hotter than Mercury. Very Few Should Exist

Astronomers have discovered a very rare, very unusual planet in a distant solar system. The planet, called NGTS-4b, is three times the size of Earth, and about 20% smaller than Neptune. It’s hotter than our very own Mercury. At about 1,000 degrees Celsius, it would be the hottest planet if it were in our Solar …

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