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 ...

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 ...

Editor's Note: This story was updated at 5:10 p.m. E.T. There's nothing like staring up at the night sky to make you feel small. But when looking out into the cosmos, you might also wonder: What is ...

The first-ever artificial intelligence simulation of the universe seems to work like the real thing -- and is almost as mysterious.Researchers reported the new simulation June 24 in the journal ...

Editor's Note: This story was updated at 5:10 p.m. E.T. There's nothing like staring up at the night sky to make you feel small. But when looking out into the cosmos, you might also wonder: What is ...

Light is fast. In fact, it is the fastest thing that exists, and a law of the universe is that nothing can move faster than light. Light travels at 186,000 miles per second (300,000 kilometers per ...

Astronomers have identified what could be the brightest, most luminous object in the universe — a quasar that emits light 500 trillion times more intense than that of our sun. Quasars are dazzling ...

Eighteen-year-old YouTuber Christopher Slayton recently crafted entire planets, black holes, galaxies, and, well, the entire cosmos. And he used nothing but the blocks within Minecraft. In the more ...

What is the biggest object in the universe? Learn more about the biggest objects in the universe, including galaxies, galaxy clusters, and dark matter. The biggest objects in the universe are clusters ...

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.

A team of astronomers have put together the largest, most detailed map of the universe ever created – and you can explore it now. The interactive online map, created using data from NASA's James Webb ...