There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

Voyager 1 has been exploring the cosmos for decades, but when it reached the edge of the solar system, it found something very strange and very hot.

A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

A newly discovered warp in the outer Solar System may have been created by a small, rocky world, much closer to the Sun than ...

Astronomers have discovered seeds of rocky planets forming in the gas around the baby sunlike star providing *** peek into the start of our own solar system. The the thing that we've discovered is ...

"It shows that Makemake is not an inactive remnant of the outer solar system, but a dynamic body where methane ice is still ...

Voyager 1 is about to go where no human-carrying spaceship has gone before. June 15, 2012— -- Fifty-five years after humans first escaped the bounds of Earth and launched a satellite into orbit, ...

Space scientists ... the planet discovered 30 years ago, which is orbiting the star 51 Pegasi. There are ‘super-Earths’ and ‘mini-Neptunes’ — categorized because of how their masses compare with those ...