The interstellar visitor Comet 3I/ATLAS passed Earth with Harvard astrophysicist Avi Loeb saying it could be an alien probe.

The interstellar comet 3I/ATLAS is just days away from coming as close to Earth as it will ever get. Here's how you can track it and spot it.

The comet originated from outside our solar system and poses no danger to our planet. NASA officials have rejected theories that the object could be an alien spaceship. While not visible to the naked ...

Alien spaceships are in a league of their own, though. Earth does have a force field that could make a spacecraft landing ...

An interstellar object named 3I/ATLAS, confirmed to be a comet, is passing through Earth's solar system. The comet poses no threat to Earth and will make its closest approach to our planet on Dec. 19.