US$ 106.94
knotty inner region
Anville crater and surroundings seen from Apollo 11
The blue-white light from surrounding stars is reflected by dust
those colors are the result of the phenomenon we call air glow
Some of the gas and dust clouds are so dense that even the near-infrared light cannot penetrate them
North America and Pelican Nebula teide knotty inner region
US$ 106.94
US$ 129.51
US$ 81.08
US$ 116.86