Add Yahoo as a preferred source to see more of our stories on Google. Our solar system is mostly arranged along one plane in space, as in this not-to-scale artist's diagram. NASA/JPL, CC BY If you’ve ...

Astronomers studying a disk of material circling a still-forming star inside our Galaxy have found a tantalizing result — the inner part of the disk is orbiting the protostar in the opposite direction ...

In our solar system, nearly all planets follow a specific pattern. As they move around the Sun, they also spin on their own axes. Most of these planets rotate in an anticlockwise direction. This ...