James Webb Space telescope spots 'big red dot' in the ancient universe: A ravenous supermassive black hole named 'BiRD' ...

One hundred degrees might seem hot, when you’re sweating through your shirt in July—but on a cosmic scale it barely registers. The Sun itself is over 15 million degrees; and in a hottest-object ...

The 3I/ATLAS comet was first spotted in July near Jupiter after it entered our solar system from another universe. Here’s ...

A peculiar object discovered by the James Webb Space Telescope just 700 million years after the Big Bang could reveal the ...

Space is dark, which makes finding bright things like stars pretty darn easy. It also makes it possible for high-powered telescopes to spot things that are very, very far away, and researchers now ...

Black holes are places where gravity is so powerful that nothing — not even light — can escape. Rather than being empty, black holes are chock full of matter that gets squeezed into a teensy space.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers have ...

University of Leicester provides funding as a member of The Conversation UK. Active galaxies are some of the most luminous and impressive objects in the sky. They tend to be massive, distant and emit ...

Things that make you go whoa! When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The universe is a big place, and it's full of big things. Planets, ...

Every now and again I’ll get a weird thought in my head that sits there demanding an answer. Sometimes it’s trivial, and sometimes it sounds silly but then leads to some fun insights. This time my ...

The fabric of expanding space as illustrated over cosmic time. One of the consequences of the expansion is that the farther away a galaxy is, the faster it appears to recede from us, and that the ...