The James Webb Space Telescope (JWST) has provided new details about one of the most hostile worlds discovered so far. It is the gas giant exoplanet WASP-121b, an 'ultra-hot Jupiter and #8221; located so close to its star that a year lasts just over 30 hours. According to a study published in the journal Nature Astronomy, this planet and #39;s atmosphere is crossed by winds at speeds of about 18,000 km/h, and the temperatures are so high that they vaporize metals, which then condense and fall in the form of exotic rain on the dark side of the planet.
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