For centuries, humanity believed that Earth was the center of the universe, a view championed by Aristotle and Ptolemy. But ...

Astronomers have discovered a "fossil" world lying in the outskirts of the solar system, according to new research.

There could be many more satellite galaxies orbiting the Milky Way than previously thought or observed, according to ...

Take a journey through the Milky Way galaxy, exploring the wonders of our solar system and the distant stars that illuminate the night sky. The Milky Way is home to over 100 billion stars, each with ...

Given 3I/ATLAS' highly eccentric orbit, this will be its one and only visit to our solar system, as its trajectory does not ...

Scientists discover 3I/ATLAS, a possible 7-billion-year-old comet from deep space. It may rewrite what we know about the ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's not aliens.) ...

Researchers at Oxford have discovered that comet 3I/ATLAS may be over 7 billion years old, making it the oldest one we've ...

For the first time, astronomers have successfully observed the earliest stages of planet formation around a star outside our ...

Harvard astronomer Avi Loeb suggests that if interstellar object 3I/ATLAS isn't a comet, nor an asteroid, it may have been ...

A newly discovered ice comet from deep space may be over 7 billion years old, making it the most ancient comet scientists ...

A recently discovered interstellar object, 3I/ATLAS, could potentially be the oldest comet ever observed, predating our solar ...