Image: 3C 397: An unusual galactic supernova remnant
3C 397 (also known as G41.1-0.3) is a Galactic supernova remnant with an unusual shape.
Astronomy
Nov 7, 2013
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Page 11 - News tagged with digital sky survey
Preserving the legacy of the X-ray universe
Every year, October is designated as American Archive Month. While many people may think "archive" means only dusty books and letters, there are, in fact, many other types of important archives. This includes the use of archives ...
Astronomy
Oct 29, 2013
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