Because Earth moves in an elliptical orbit around the sun, being further away means it travels slower along its orbit. This ...

The Earth could be soon flung out of orbit or into the sun - all thanks to a passing star - Either way, the sun is likely ...

How long does it take Pluto to orbit the sun? Learn more about how this planet makes one lap around our Solar System.

In the outer reaches of our solar system, far beyond the orbit of Pluto, lies Sedna, one of the most mysterious objects ever ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

On Earth, depending on where you are, the analemma can be at different angles, though it always traces out this ...

Moving from the outer layer inward, the first layer is the corona — the outermost part of the sun’s atmosphere that is ...