The sky above the Allgäu Public Observatory in southwestern Bavaria was an amazing sight, with the night lit up by two very different phenomena: one an example of advanced technology, and the other of nature’s dramatic power.
ESO tested the new "Wendelstein laser guide star" unit by shooting a powerful laser beam into the atmosphere.
Laser guide stars are artificial stars created 90 kilometres up in the Earth’s atmosphere using a laser beam. Measurements of this artificial star can be used to correct for the blurring effect of the atmosphere in astronomical observations — a technique known as adaptive optics.
Nikon D7000, Main sequence 637 frames, ISO 1600, 11mm, f2.8, 15 sec interval
Music: NIGHTWISH - Nemo
1080p (might not run smoothly on some PC's)