The Universe has long inspired curiosity and awe, compelling scientists and philosophers alike to explore its origins and ...

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky ...

NASA NASA administrator says 'at least a trillion' other planets like Earth could exist in universe Bill Nelson describes missions to the moon and Mars, and the search for extraterrestrial life ...

We currently know of more than 5,800 planets beyond the solar system, but we've only found the tiniest fraction of the exoplanets that astronomers think lie elsewhere in the universe.

There are about 700 quintillion terrestrial exoplanets in the visible universe and they are on average a few billion years older than Earth. Our planet is also in the minority when it comes to ...

Bright planets Mercury, Venus, Mars, Jupiter and Saturn are all strung out in a line from the eastern sky to due south just before the sun comes up.

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky ...

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky ...