Richat Structure Material:Stretched Canvas 500 kilometers) from the planet

500 kilometers) from the planet

Astronomers using data from NASA's Hubble Space Telescope caught two clusters full of massive stars that may be in the early stages of merging

hydrogen sulfide

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Richat Structure Material:Stretched Canvas 500 kilometers) from the planetAt close to 50 kilometers in diameter, the Sahara Desert's sprawling Richat Structure is one of the most mysterious geological features on Earth. Once thought to be an impact crater, the Richat Structure's flat middle and lack of shock altered rock indicates otherwise. The possibility that the Richat Structure was formed by a volcanic eruption also seems improbable because of the lack of a dome of igneous or volcanic rock. Rather, the layered