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

Stargazers can see six planets all in one evening during the second month of the year, especially Mercury, which is usually ...

Scientists believe our solar system may be hiding a secret world — and it’s not the famous Planet X :eyes: A new study suggests an Earth-sized rocky planet, nicknamed Planet Y, could be lurking in the ...

The solar system’s most giant planet is slightly less of a giant than scientists once thought. Jupiter, a world that is so ...

A rare discovery beyond Neptune is forcing scientists to rethink early solar system dynamics and the forces that shaped ...

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously unknown world may be lurking in the outer reaches of the solar system. The ...

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

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

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 ...

Discover the only planet in our solar system that rotates clockwise. Learn why this 'rebel' planet spins backwards, how a collision changed its history, and why its days are longer than its years.