Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

Jamie Carter is an award-winning reporter who covers the night sky. A supernova called SN 2023ixf has appeared in the outskirts of a beautiful spiral galaxy in the night sky. The exploding ...

Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

which are among the brightest stars in the night sky, according to the Center for Astrophysics. In the Milky Way and nearby ...

"I never dreamed of Webb seeing them in such large numbers." ...

The night sky has always played a crucial role in navigation, from early ocean crossings to modern GPS. Besides stars, the United States Navy uses quasars as beacons. Quasars are distant galaxies with ...

If you look up in the sky at night at Cassiopeia, you'll notice a faintly glowing object located just off Schedar, the constellation's brightest star. That's the Andromeda galaxy, our closest ...

Messier 31 is located 2.5 million light-years away from Earth and was a much bigger target in the sky than the galaxies ...