Object 3I/ATLAS is now too far from Earth to aim a telescope at, but prior observations showed some unusual behavior. The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought ...

Our solar system’s latest and only third known interstellar visitor is becoming more fascinating by the week. Spotted in early July, the object, dubbed 3I/ATLAS, is widely believed to be a comet. It’s ...

A strange object hurdling through our solar system from interstellar space may, according to one of academia’s most controversial astronomers, have been sent by aliens to see how smart we are. “It is ...

A comet that was born in another solar system and could be billions of years old is hurdling through Earth’s solar system — a discovery made on July 1 that’s led some astronomers to speculate that the ...

Only four such objects have been discovered, astronomers say. Astronomers have discovered a "fossil" body residing on the outskirts of the solar system, according to new research. The object – which ...

NPR's Ari Shapiro talks with astronomer David Jewitt about what we can learn from the third interstellar object to have entered our solar system, a comet-like object known as 3I/ATLAS. A remarkable ...

An interstellar object – a comet from a distant star system – is passing through the space between Jupiter and Mars, and according to a recent study, Comet 3I/Atlas may be 3 billion years older than ...

A team of astronomers recently discovered a mysterious object in the outer solar system that is in a resonant orbit with Neptune. This object, named 2020 VN40, orbits the Sun every time Neptune ...

Here’s what you’ll learn when you read this story: Object 3I/ATLAS is now too far from Earth to aim a telescope at, but prior observations showed some unusual behavior. The anomalous nature of the ...