Astronomers have discovered a bizarre exoplanet that rains iron at night. The daytime side of this world, dubbed WASP-76 b, isn’t any less hellish, either. Temperatures can reach up to 4,300 degrees Fahrenheit (2,400 degrees Celsius) — hot enough to vaporize metal. “One could say that this planet gets rainy in the evening, except it rains iron,” University of Geneva astronomer David Ehrenreich, who led the new study, said in a press release.WASP-76 b is slightly smaller than Jupiter and sits some 640 light-years from Earth in the constellation Pisces. Its horrifying weather is caused by its truly extreme orbit. Gas giant worlds like WASP-76 b are called hot Jupiters because they orbit uncomfortably close to their home stars — in this case, nearly 10 times closer than Mercury is to our sun. That proximity leaves WASP-76 b “tidally locked” to its star, with one side permanently baking in light and the other stuck in eternal darkness.WASP-76 b’s daytime side gets hit…



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