A lone body, making one passage around the Sun for every ten by Neptune, is rewriting the rules of planetary dynamics in the ...

Astronomers have discovered an object at the edge of the solar system that is locked in a strange rhythmic dance with the ice ...

Our sun, currently in its prime, is expected to shine for another 5 billion years. Eventually, it will transform into a red ...

But considering that this object, if it does exist, causes only tiny irregularities in the solar system's planets, a primordial black hole far out in the solar system wouldn't have very big effects.

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.