It's possibly as big as Manhattan, likely older than our own solar system, and it's traveling through space at speeds of up ...

Outer space contains more incredible phenomenons and unsolved mysteries than anywhere else—and we think it's just fascinating ...

"If our solar system is indeed moving this fast, we need to question fundamental assumptions about the large-scale structure ...

"It's going to look different because it didn't come from our solar system and that's what makes it so magical." ...

The universe is supposed to look the same no matter where you stand. That idea, known as the cosmological principle, sits at ...

NASA is providing more images and information about the interstellar object that's passing through our solar system right now ...

Space looks very dark from Earth. But does the solar system, and the universe for that matter, have an area that's the ...

The object, estimated to be the size of a city block, is only the third known interstellar visitor to our solar system since ...

NASA unveiled close-up pictures on Wednesday of the interstellar comet that’s making a quick one-and-done tour of the solar system. Discovered over the summer, the comet known as 3I/Atlas is only the ...

In 1949, famed mathematician and physicist John von Neumann delivered a series of addresses at the University of Illinois, ...

Astronomers say they spotted signs of a giant explosion releasing from a star beyond our solar system, one powerful enough to destroy a planet’s atmosphere.

Study from Bielefeld finds major departure from the standard model. How fast and in what direction is our solar system moving through space? This question, though simple in appearance, plays a central ...