A stronomers have observed a cosmic collision of extraordinary magnitude as the galaxy NGC 7318b plowed into its neighbors at an astonishing speed of 2 million mph, triggering a shock wave akin to ...

Astronomers have spotted one of the most powerful shock waves ever seen, caused by a galaxy slamming into four of its neighbors while traveling at 2 million mph (3.2 million km/h). The cosmos ...

A galaxy from Stephan’s Quintet, known as NGC 7318b, has been observed colliding with its neighbouring galaxies at an extraordinary speed of 3.2 million kilometres per hour. This event was ...