I/ATLAS is a fast, ancient interstellar object. Its odd features fuel both scientific study and speculation. On July 1, ...

NASA has debunked the proposal of controversial astronomer Avi Loeb, who claimed the comet 3I/ATLAS could be malicious alien ...

Amid the season with at least one meteor shower occurring every night, interstellar comet 3I/ATLAS may become visible to us ...

The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system.

But over the summer, 3I/ATLAS, has plunged toward the inner solar system—and the fireworks show has begun in earnest. When ...

Interstellar object 3I/ATLAS shows an unexpected frontal glow that Harvard's Avi Loeb says cannot be explained by sunlight reflection or standard cometary outgassing.

The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought experiment to it, highlighting everything ...

I/ATLAS, interstellar comet or alien spacecraft, to fly by Mars next month, giving European and international spacecraft a ...

"We were excited to see the growth of the tail, suggesting a change in the particles from the previous Gemini images." ...

Since its discovery, astronomers have been frantically trying to gather as much information as they can about the newest interstellar interloper dubbed 3I/ATLAS. It's been challenging, but they've ...

BeNeLux, report that the chi Cygnids meteor shower (IAU shower #757) was detected this past week (cf. map at website URL for dates of 2025 Aug. 20-31). Based on past returns, the shower is expected ...

The most striking science photos of the week: including the Perseid meteor shower and glowing underwater wonders.