The cosmos, in its vast expanse, continues to reveal awe-inspiring mysteries. The latest of these enigmas is a color-changing object that is making its way into our star system. The object’s unique ...

Something strange is moving through our solar system — and it’s making headlines everywhere. The mysterious object, known as 3I/ATLAS, has become one of the most talked-about space mysteries in recent ...

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 ...

Astronomers found that interstellar object 3I/ATLAS shows an "extreme abundance ratio" of nickel and iron in its gas plume. Astronomers are still poring over data to get a better sense of 3I/ATLAS, ...

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 ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration showing Planet Nine, a hypothetical, undiscovered planet in our solar system. New research now suggests the ...