Our Solar System is in motion and cruises at about 200 kilometres per second relative to the center of the Milky Way.

This could drastically shift our understanding of how our planetary system formed — and tantalizingly ... of 11 objects ...

The Oort cloud is traditionally thought of as a vast shell of perhaps trillions of icy objects encasing our solar system, the ...

In the early seventeenth century, Copernicus' concept of a heliocentric universe was further ... "When I wrote my treatise about our system, I had my eye upon such principles as might work with ...

The solar system is also home to many other cosmic ... This theory was known as the heliocentric model. It was controversial as accepted wisdom at the time (supported by the church) was that ...