A fleet of NASA missions has likely uncovered a collision between two ultradense stars in a tiny galaxy buried in a huge stream of gas. Astronomers have never seen this type of explosive event in an ...

Astronomers have spotted a colossal explosion coming from a pair of merging neutron stars lurking within the remnants of an ancient galaxy pileup. The unexpected "collision within a collision" could ...

Researchers have observed the fallout from a planetary collision 11,000 light years from Earth. When worlds collide…suns act squirrely. Astronomers have witnessed a rare and violent cosmic crash ...