Interstellar comet 3I/ATLAS is tearing across the inner solar system at roughly 130,000 miles per hour, a speed that turns ...

The universe is supposed to look the same no matter where you stand. That idea, known as the cosmological principle, sits at the heart of modern astrophysics. It says matter spreads out evenly when ...

NASA released close-up images on Wednesday of the rare interstellar comet that's making a single pass through the solar system. One of the images shows the comet, also known as 3I/ATLAS, as it moves ...

NASA’s Goddard Space Flight Center shared the images of comet 3I/ATLAS. It's possibly as big as Manhattan, likely older than our own solar system and it's traveling through space at speeds of up to ...