Supermassive black holes spiral towards each other in this simulation created by NASA's Goddard Space Flight Center that ...

Scientists solve a 15-year Mars mystery, confirming ferric hydroxysulfate formed by volcanic and hydrothermal heating across ...

A rare phenomenon called STEVE was seen across Wyoming's dark skies around midnight Tuesday. It's a super-hot streak of ...

Chemical fossils from 635-million-year-old rocks suggest sponges were among Earth’s first animals, reshaping the story of early life.