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

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.

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

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

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

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

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 ...

Humanity's drive to explore has taken us across the solar system, with astronaut boots, various landers and rovers' wheels ...

An interstellar object the size of Manhattan, named 3I/ATLAS, is baffling scientists by emitting an industrial metal compound ...

Viewed from orbit, Jackass Flats — situated in southern Nevada about 65 miles northwest of Las Vegas — could easily be ...