<p><b>Image Credit:</b> NASA
</p><p><b>Description</b> Since its launch on July 23, 1999, the Chandra X-ray Observatory has been NASA's flagship mission for X-ray astronomy, taking its place in the fleet of "Great Observatories."
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NASA's Chandra X-ray Observatory is a telescope specially designed to detect X-ray emission from very hot regions of the Universe such as exploded stars, clusters of galaxies, and matter around black holes. Because X-rays are absorbed by Earth's atmosphere, Chandra must orbit above it, up to an altitude of 139,000 km (86,500 mi) in space.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/44494372@N05">NASA on The Commons</a>
2013-06-07 14:23
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/nasacommons/8980505863/">Chandra Spacecraft, 1999-present</a>