Andromeda, Hubble

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...
Astronomers have completed a stunning massive photomosaic of our closest celestial neighbor, the Andromeda galaxy, comprised ...
Messier 31 is located 2.5 million light-years away from Earth and was a much bigger target in the sky than the galaxies ...