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

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

The Sombrero Galaxy (Messier 104) is one of the most unique galaxies captured by NASA’s telescopes. It gets its name from its shape, which resembles a broad-rimmed Mexican hat when viewed from Earth.

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 ...

NASA said CDG-2 “may be among the most heavily dark matter-dominated galaxies ever discovered” ...

Scientists believe this long stream of gas may have formed when several galaxies collided millions of years ago.

NASA has received the first images from a tiny spacecraft designed to study the ...

With the first images from the spacecraft now in hand, the team behind NASA's Star-Planet Activity Research CubeSat, or SPARCS, is ready to begin charting the energetic lives of the galaxy's most ...

The universe is overrun with dark matter, outweighing the ordinary stuff that stars and planets are made of five-to-one. But ...

Astronomers using the James Webb Space Telescope have spotted the most distant “jellyfish galaxy” ever seen — a cosmic oddity ...

A galaxy made almost entirely of dark matter, an elusive form of matter that doesn’t interact with light, was spotted by Hubble 250 million light-years from Earth.