While the Sun is the centre of our solar system, it only makes up about 99.8 per cent of the mass of the entire solar system.

For a few evenings around 28 February, every planet in the solar system will be visible in the night sky, thanks to a rare great planetary alignment. Here's how to make sure you don't miss this ...

Astronomers have sent artificial satellites (satellites that are manmade) to orbit several Solar System objects, including Jupiter, the asteroid Vesta and Mars. Polar orbits take the satellites ...

A simple animation created by planetary ... Earth orbits the sun at 66,600 mph, and the sun orbits the Milky Way at 514,500 mph, our solar system's speed relative to the CMB is about 827,000 ...