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 ...

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

Using JWST and ALMA data, astronomers have spotted a superlong and narrow 'galactic contrail,' possibly produced by a black ...

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

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

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 ...

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.

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

Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than ...

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

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