A European dark matter telescope called Euclid has released its first treasure trove of data, showing galaxies by the ...

Space scientists have dubbed the merger of two galaxies a “cosmic guitar.” A new Hubble Space Telescope image captures Arp 105, a stunning ongoing union between an elliptical galaxy and a spiral ...

The galaxy in the upper part of the image contains very pronounced tidal tails — long, extended ribbons of gas, dust, and stars." One day, our Milky Way galaxy will also merge with the Andromeda ...

The dataset includes a catalogue of 380 000 galaxies that have been detected by artificial intelligence or citizen-science ...

That gas is not forming new stars for the galaxy but remains nearby in new structures known as tidal tails. This artist’s conception shows the stream of gas and stars that were flung away from ...