We're just weeks away from this interstellar visitor reaching its brightest in Earth's night skies. Will we see it?

What makes 3I/ATLAS especially intriguing is that the comet might be three billion years older than our entire Solar System.

A one-way trip to the Mars usually takes you about 9 months to complete, but one team out of Russia thinks they can knock ...

Interstellar comet 3I/ATLAS — just the third such object ever confirmed to have entered our solar system — flew past Mars ...

An alien comet passing through our solar system made its closest approach to Mars recently, and two European robotic spacecraft orbiting the red planet turned to take a look.

While Loeb is known for making some controversial claims and predictions in the past, he is still a very respected astronomer ...

The European Space Agency's two Mars orbiters take their shot at getting pictures of the exotic interstellar comet 3I/ATLAS.

The interstellar comet 3I/ATLAS may be out of view of Earth, but orbiters on Mars were able to recently get a look at it.

The images taken by two Mars orbiters show a bright, fuzzy white dot of the comet, also known as 3I/ATLAS, appearing to move ...

Space missions in the future could travel to Mars, asteroids and the outer solar system by riding on nuclear-powered rockets, ...

The asteroid belt may seem permanent, but it is far from static. Its slow decline reveals a more violent past when more ...

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?