Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being classified as a dwarf planet. However, out beyond Neptune there could be ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

This provides another piece of the puzzle to understand how planets and ... New studies offer a clearer picture of how the outer solar system formed and evolved based on analyses of trans ...

It is not often that all the planets in the Solar System other than ours are lined up across the night sky for us to see.

Astronomers may have discovered a scrawny star bolting through the middle of our galaxy with a planet in tow. If confirmed, ...

Our solar system’s planets are set to align in a seven-strong planetary parade this week that will be visible in the UK night ...

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

New research shows that star activity can distort exoplanet measurements, affecting size, temperature, and atmosphere ...

Our solar system’s planets are set to align in a six-strong planetary parade this week that will be visible in the UK night sky. The celestial event is set to be an extension of the already impressive ...

A planet parade is when several of our solar system's planets are visible in the night sky at the same time. There will be six planets visible this time around, including Venus, Mars, Jupiter ...