Southern star trails above La Silla

A fish-eye's view from the rocky desert landscape around ESO's La Silla Observatory reveals stars' paths ��� star trails ��� as they appear to journey through the night sky. Caused by the Earth's rotation relative to a static sky, the stars appear to travel around one fixed point ��� Earth's Celestial South Pole ��� which is just visible above the rust-tinted horizon.