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 ...

The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

We have all been taught in school that planets revolve in the same direction as the Earth, i.e., in the counterclockwise ...

Snapchat, the popular messaging app known for self-deleting messages and fun chat features, also offers a paid plan called ...

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 ...

In space, no one can hear you scream. But just because sound can’t travel in the vacuum of space doesn’t mean that the ...

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

NASA’s newly launched IMAP mission is set to tell us more about the boundary between our Solar System and interstellar space ...

Armstrong Williams takes on the news of the week and asks the questions you want answered. by The Associated Press and KOMO News Staff SEATTLE — While the winter and early parts of spring are not ...