Interstellar invader Comet 3I/ATLAS is still full of surprises — an unexpected brightening has scientists baffled ...

Avi Loeb, Harvard astrophysicist and longtime proponent of the possibility that certain celestial objects could be artificial ...

The interstellar comet 3I/ATLAS has a thick irradiated crust that no longer resembles its home star system, simulations and ...

A photographer who captured a comet in the night sky above the Yorkshire Dales said he spent weeks waiting for the perfect ...

A photographer says he feels "very lucky" to have captured Comet C/2025 A6 as it appeared over the Lancaster bomber sculpture ...

November 2025 offers a fading green comet, the year’s biggest supermoon, Taurid and Leonid meteors, Orion’s return, and ...

An interstellar comet that originated outside our solar system has just made its closest pass to the sun, brightening ...

"The implication of alien technology would be huge and therefore we must take it seriously,” Harvard's Avi Loeb told Newsweek ...

Spacecraft have revealed that the comet—which one scientist suggests could be an alien spacecraft—is now "distinctly bluer ...

Comet 3I/ATLAS was expected to come within 130 million miles of the sun on Oct. 30. For the time being, 3I/ATLAS will remain on the opposite side of the sun from Earth, making it impossible to observe ...

An interstellar comet that originated outside our solar system just flew by the sun. Next, the object will fly by Earth in ...

Water discoveries in space happen all the time. But this one’s actually a big deal, and not just because some scientists got excited (though they absolutely did). NASA’s Neil Gehrels Swift Observatory ...