I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known. But experts caution we need more data.

Recreating artificial solar eclipses in space could help astronomers decipher the inner workings of our sun much quicker than ...

On June 14 and 16, technicians installed solar panels onto NASA's Nancy Grace Roman Space Telescope, one of the final steps ...

You've now reached the outer edges of our own solar system It would take you about 23 million years of continuous scrolling on this scale to get to the farthest regions of the observable universe ...

This 2011 astronaut photo shows the atolls of Rowley Shoals lined up in a near-perfect line off the coast of Australia. The ...

This is how our own solar system began forming around 4.5 billion years ago. The pebbles were found in planet-forming zones ...