Picture Id: 1566259
Stars trail around the north celestial pole, Polaris. Below is the 2.5 meter Isaac Newton Telescope, the first telescope on the mountain, once the telescope of Royal Greenwich observatory. The observatory on the left houses the 1.2 meter Mercator telescope.
Roque de los Muchachos Observatory, La Palma Island, Canary Islands, Spain.
BABAK TAFRESHI/National Geographic Creative