Though this hunt came up empty, the fact that 3I/ATLAS is only the third known object found in the solar system after ...

For now, the alien spacecraft theory remains unproven. Advocates insist that more studies and evidence are needed before they ...

The observations were carried out by the Breakthrough Listen program as the object neared its closest approach to Earth on ...

Discovered in July, 3I/ATLAS is not your average comet – it’s a giant snowball from beyond our solar system. The comet, ...

Discovered in July, 3I/ATLAS is not your average comet – it’s a giant snowball from beyond our solar system. The comet, ...

We've all grown up dreaming of aliens landing on the Earth or laser beaming across the sky; well, either way, it's sci-fi and ...

The Perseverance rover has been exploring Jezero Crater for years, but it's never found an otherworldly object quite like this one until now.

Harvard physicist Avi Loeb proposes using the interstellar comet 3I/ATLAS to rapidly deliver time capsules, reaching aliens over 20,000 years faster than the Voyager probes.

3I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar ...

Did an alien spacecraft just fly by Earth? That’s the question a lot of people, including Harvard astrophysicist Avi Loeb, are asking right now. A massive interstellar object called 3I/ATLAS which ...

If aliens are out there, why haven’t we heard from them? That’s the question at the center of Pop Mech’s new story, “Aliens Probably Exist—But They’re Staying Silent For a Reason, NASA Scientist ...

KAISERSLAUTERN, Germany — German authorities have launched a criminal investigation into apparent laser beam attacks earlier this month on pilots of American F-16s at Spangdahlem Air Base. Three ...