For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of light is incredibly fast to us ...

What is the biggest object in the universe? Learn more about the biggest objects in the universe, including galaxies, galaxy ...

See amazing views of colliding galaxies NGC 520 and barred galaxy IC 4212 in imagery from the Siena Galaxy Atlas. Credit: ...

You’ll see some irregular galaxies that look like nothing, and some barred spirals that look like everything. Along the way, you’ll learn about what kinds of stars make up each kind of structure, and ...

The formation of galaxies in the universe should follow a fairly simple path. It starts with small galaxies, which then grow bigger and bigger until they become the giant galaxies we see in the modern ...

Lacki suggests detecting the combined glow of the emissions of several civilizations. It’s an approach that comes with its ...

For decades, scientists engaged in the Search for Extraterrestrial Intelligence (SETI) have probed the galaxy for signs of artificial radio transmissions. Beginning with Project Ozma in 1960, ...

New radio astronomy results reveal how galaxies exchange gas with the intergalactic medium – the raw material for stars and ...

An analysis of the afterglow of the big bang sheds light on how black holes distribute mass in the universe and why some ...

"We've always known that we need something to complete the puzzle, but we haven't really known what shape or form those missing pieces were going to be." A secret population of hidden galaxies ...

A vast river of neutral hydrogen bridges two galaxies that are beginning to enter the monstrous Virgo Cluster, and this ...