universe

Astronomer Carl Sagan once said that humanity is "made of star stuff." In a new video, astrophysicist Suzanna Randall explains what that actually means and where the elements in our body come from.

Black holes seem to get all the attention. But what about their mirror twins, white holes? Do they exist? And, if so, where are they?

Whether you're a frequent jet-setter or a couch potato, you travel much more than you think, thanks the motion of the Earth, sun, Milky Way galaxy and more.

A galaxy that existed less than 2 billion years after the Big Bang has revealed the distribution of its water content for the first time.

To find out what is beyond space, a good place to start would be to figure out where space – our universe – ends. The problem is we don't know where space ends, or even if it ends at all.

A new super-cool technique could shed light on a hidden dark matter candidate known as 'dark photons.'

The coming Square Kilometre Array could shed light on mysterious dark matter, revealing the role it played in the formation of the universe's first galaxies.

In the early 20th century, a team of women went far beyond their job descriptions, not to mention the societal norms of the time, to revolutionize astronomy.

Why didn't the universe collapse into a black hole during the earliest moments of the Big Bang? Simply put, because that's not how you make a black hole.

New research looking at the cosmological constant problem suggests the expansion of the universe could be an illusion.