But the Big Bang theory predicts that about 5% of the universe's contents should be atoms made of protons, neutrons and ...

Look up at the night sky and it is easy to believe that stars and galaxies are where the universe keeps almost all of its ...

In doing so, they found this orphan is within the same weight class as Saturn, strengthening the case that the galaxy teems ...

This early galaxy hosts as much as 30% of the oxygen of a fully developed, modern-day one. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A ...

The European Space Agency (ESA) unveiled magnificent new images from its Euclid space telescope, representing the agency's first scientific discoveries from early observations. The project, which ...

Our status as milk-producing mammals would not be lost on intelligent aliens studying the history of our astronomy. The ancient Greeks, they would learn, described a milkiness in the night sky. And ...

On April 24, 1990, all 24,000 pounds of the Hubble Space Telescope were tucked away inside the Discovery space shuttle when it launched into space. Thirty-five years later, NASA says Hubble has proven ...

JWST spotted carbon in a small galaxy that we see as it existed just 350 million years after the Big Bang. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Mysterious blasts of radio waves from across the universe called fast radio bursts help astronomers catalog matter. ESO/M. Kornmesser, CC BY-SA If you look across space with a telescope, you’ll see ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Chris Impey, University of Arizona (THE CONVERSATION) If you look across space with a ...