China is nearing the completion of the world's largest radio telescope. The massive structure called FAST nestles in a bowl-shaped valley between hills in the southwestern province of Guizhou . It will allow scientists to gather signals from tens of billions of light years away when it is completed in 2016.

The dish will have a perimeter of about 1.6 kilometres. That's like 30 football fields. Woah!

Watch the footage captured by a drone: