In a solar system far, far away NASA have discovered a planet which they think 'might be remarkably similar to Earth', though ...

Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to form in ...

Add Yahoo as a preferred source to see more of our stories on Google. Digital art of distant planet - Dottedhippo/Getty Images On August 24, 2006, our solar system lost a planet. It wasn't by ...

Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar system. It’s an unprecedented ...

When people speak of the northern lights, they are typically referring to Earth’s spectacular display of aurora borealis: ...

These icy bodies orbit the sun just like the major planets, yet they follow their own rules, often traveling along elongated ...

Researchers estimate that the planet has about a 50% chance of being in its star's Hoble zone.