Astronomers have clocked a cosmic collision at 3.2 million km/h (2 million mph). A new instrument has spotted a galaxy ...

Astronomers have observed a cosmic collision of extraordinary magnitude as the galaxy NGC 7318b plowed into its neighbors at ...

Astronomers have observed a galaxy ripping through galactic debris left by multiple collisions at a dangerous "cosmic ...

Five telescopes of the H.E.S.S.-collaboration in Namibia are used to study cosmic radiation, especially gamma radiation. With ...

When stars explode as supernovas, they can cause serious cosmic carnage. Is Earth in any danger from any nearby stars?