Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

How Many Planets Are There in the Solar System? There are 8 planets in our solar system. The planets orbit the Sun in ...

Rare "in-sync" solar system discovered by scientists 04:12. Astronomers have discovered a rare in-sync solar system with six planets moving like a grand cosmic orchestra, untouched by outside ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – here’s how to spot the celestial show. Close. Advertisement.

Recent research led by Caroline Dorn, Professor for Exoplanets at ETH Zurich, has revolutionised our understanding of exoplanets and how they could be filled with water than previously thought ...

This process, called accretion, is how everything in the solar system – planets, moons, comets and asteroids – came into being. Telescopes can see young solar systems being born.

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in circular orbits around the Sun on a flat disk.But in reality, our Solar ...

Astronomers using planet-hunting satellites have discovered a rare solar system with six planets moving completely in sync with one another, as if they were untouched by any outside force since ...

Pluto follows a path with an angle 17 degrees above the plane of the solar system’s planets. NASA. This bizarre and distant Earth-like planet, though, isn’t the first hidden world to be proposed.

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

This diagram shows the orbital distribution of extrasolar planets smaller than Jupiter that have been detected by the Kepler mission, in comparison to the orbits of Mercury, Venus, Earth, and Mars.