The colliding objects are at least 37 miles across — at least four times larger than the object that collided with Earth 66 ...

Astronomers detected an object moving faster than anything ever recorded in our solar system. It didn’t orbit the Sun — it passed straight through. Its size, speed, and chemical makeup don’t match ...

The Sun is huge, but it's a speck of dust compared to the universe's true giants. This video introduces Stevenson 218, the largest known star, a red supergiant so vast it could swallow our solar ...

Astronomers have been treated to a stunning fireworks display from around a young star called The events, detected in 2004 ...

The mystifying 3I/ATLAS interstellar comet is blazing toward Earth and will soon come as close to our planet as it ever will.

The interstellar comet 3I/ATLAS is currently traversing our solar system, drawing significant attention online. Discovered on ...

David Rankin of the Catalina Sky Survey in Arizona spends nights scanning the solar system for potentially catastrophic space ...

Comet 3I/ATLAS, an interstellar visitor, reaches its closest approach to Earth on Dec 19 at about 167 million miles - visible ...

While the 21st century has been bumpy, it has also ushered in monumental scientific and technological breakthroughs that have ...

Learn how to watch interstellar comet 3I/ATLAS as it makes its final flyby of Earth today at 153,000mph before disappearing ...

The comet will come much closer to Jupiter in March, zipping within 33 million miles. It will be the mid-2030s before it ...

In 2004, a bright point of light in the debris disk surrounding Fomalhaut was thought to be an exoplanet. But the spot ...