The Asteroid Terrestrial-impact Last Alert System (ATLAS) in Chile first saw this celestial wanderer on July 1, 2025. It is ...

But 3I/ATLAS is no ordinary rock – it’s a comet from beyond the solar system which greeted the Earth on December 19. It’s ...

I/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 object ...

Incredible but true! A Harvard astrophysicist puts forward a startling hypothesis: comet 3I/ATLAS could be an alien ...

It came from outer space. Interstellar space, to be precise. From somewhere beyond the influence of our sun, possibly from ...

The prevailing consensus is that 3I/ATLAS behaves like a comet because it is, quite simply, a comet, albeit one with a ...

NASA's alien-hunting Europa Clipper spacecraft took seven hours of ultraviolet observations of interstellar comet 3I/ATLAS while both objects zoom toward Jupiter.

Comet 3I/ATLAS, a rare interstellar visitor, is visible this week as it departs the solar system, with some public events ...

3I/ATLAS came within 168 million miles of Earth around midnight CST Friday. While that might seem pretty far away, the ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

I/ATLAS is definitely a comet, not an alien spacecraft, but it is only the third confirmed interstellar object detected in ...