A comet born around a distant star is now tearing through our solar system at roughly 150,000 miles per hour, and astronomers ...

Where does the solar system end and interstellar space begin? That's a question scientists have been working to answer using ...

The probe is set to become the third human-made object to leave the solar system, but it must first cross this mysterious ...

Based on the composition of gases spewed by the icy space rock, researchers estimate that our guest might be up to 12 billion ...

Every few years, something slips through our cosmic neighborhood that doesn't belong here. It arrives from somewhere out past ...

One year ago, on July 1 2025, astronomers discovered a fascinating new object moving through the Solar System. Detected by the Asteroid Terrestrial-impact Last Alert System (ATLAS), the object was ...

In July 2025, astronomers spotted something remarkable passing through our Solar System, an object that had not come from ...

This ‘really fun space rock’ is only the third interstellar object to be observed. Where is it heading and can stargazers see it? An object that came from outside our solar system is hurtling towards ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space telescopes and orbiters have been documenting the rare visit. A mysterious ...

The National Aeronautics and Space Administration has confirmed an interstellar object is passing through our solar system. The object is a comet hailing from the direction of the constellation ...