On planet K2-141b, oceans are made of molten lava, winds reach supersonic speeds and rain is made of rocks. “Scientists have referred to the bizarre, hellish exoplanet as one of the most ‘extreme’ ever discovered,” reports CBS News. From the report: According to a new study published in Monthly Notices of the Royal Astronomical Society, scientists from McGill University, York University and the Indian Institute of Science Education have uncovered details of one of the newest “lava planets” — a world that so closely orbits its host star that much of it is composed of flowing lava oceans. Scientists found the atmosphere and weather cycle of K2-141b to be particularly bizarre. The Earth-sized exoplanet appears to have a surface, ocean and atmosphere all made of the same ingredients: rocks. While analyzing the planet’s illumination pattern, scientists found that about two-thirds of the planet experiences perpetual daylight. K2-141b’s close proximity to its star gravitationally locks it in place — meaning the same side always faces the star. This scorching hot part of the planet reaches temperatures of over 5,400 degrees Fahrenheit. It’s hot enough to not only melt rocks, but also vaporize them, creating a thin, inhospitable atmosphere. The rest of the planet is cloaked in never-ending darkness, reaching frigid temperatures of negative 328 degrees Fahrenheit.

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