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

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

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

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 ...

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

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.

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

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

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 Perseid meteor shower is visible from Thursday, July 17th, through September 1. The Perseids are predicted to reach their zenith or peak streak on the evening of August 12th, continuing until just ...

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