Astronomers have spotted 3I/ATLAS, just the third interstellar object ever seen in our solar system. Bigger, faster, and possibly far older than ‘Oumuamua or Borisov, this icy traveler could help ...

The new image, which shows Earth along with an even smaller point of light coming from the moon, harkens back to Carl Sagan's ...

To receive the same amount of starlight as Mars receives from our sun, a planet orbiting an M-type red dwarf would have to be positioned much closer to its star than Mercury is to the sun.

The comet, first spotted on July 1 by the NASA-funded Asteroid Terrestrial-impact Last Alert System in Chile, is only the third known interstellar object to pass through our solar system. It was first ...

Science Did you know that Jupiter does NOT orbit the sun? It's true! This giant planet in our solar system doesn't play by the same rules as its other neighbors.

An accidental discovery in an astronomy show offers researchers a new clue about the mysterious Oort Cloud, a large expanse of icy bodies revolving around the sun.