Astronomers have tracked a powerful blast of radiation back to its source, finding a neutron star collision within colliding galaxies.

Nearly a millennium ago, astronomers witnessed a brilliant new star blazing in the sky—a supernova so bright it was visible ...

NASA’s Hubble Space Telescope has captured the Crab Nebula’s expansion across a quarter century, comparing observations taken ...

Nearly a millennium ago, scientists observed a magnificent new star blazing in the sky, a supernova so intense that it could ...

NASA’s Hubble Space Telescope revisits the Crab Nebula, showing the movement of filaments and changes in gas composition over ...

A powerful "gamma-ray burst" has been seen exploding from merging neutron stars hidden within a previously unknown ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Outbursts from an infant ...

The violent collision of two neutron stars is providing new insights on how the universe’s heaviest elements were created.

A quarter-century after its first observations of the full Crab Nebula, NASA’s Hubble Space Telescope has taken a fresh look ...