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• CuriousA planet may have been born from the ashes of its own dead star.Astronomers say a planet candidate around white dwarf HS 0209+0832 appears to have formed from material expelled when its star died. If confirmed, it would be the first known example of a planet forming around a white dwarf.
• CuriousMars has a blue sunrise and cliffs scientists have waited years to reach.NASA’s Curiosity rover has photographed wind-carved cliffs called yardangs in unusually vivid morning light. The image is beautiful, but the geology is the more interesting story: these rocks may preserve a missing chapter in Mount Sharp’s history.