The aurora australis provides a dramatic backdrop to a Scott Tent at Amundsen-Scott South Pole Station on July 14, 2009. (National Science Foundation/Patrick Cullis)
Nacreous Clouds over the NASA Radome (a weatherproof structure housing a 10 meter antenna inside). Nacreous clouds (or Polar stratospheric clouds) form high in the dry stratosphere, catching sunlight well after dusk, displaying brilliant colors. Original here. (Alan R. Light / CC BY)
A 20-minute exposure reveals the southern celestial axis above the new elevated station at Amundsen-Scott South Pole Station on July 21, 2009. At the poles, scientists can study a fixed point in the sky for months and years, whereas in the middle latitutes the stars 'move' across the night sky. The white cloudy streak is the Milky Way. (National Science Foundation/Patrick Cullis)
Adelies at Cape Hallett, along the Borchgrevink Coast, Antarctica on November 29, 2009. The Admiralty Mountains can be seen in the distance. (National Science Foundation/Jessy Jenkins)
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