The Hubble Space Telescope celebrates its 20th Anniversary this week, marking two decades of space observation since it was launched into space by NASA.

Hubble was one of the first space telescopes of its kind, and since 24 April 1990 the continuing space mission has helped unearth some of the greatest modern discoveries in astrophysics, not to mention delivering some of the most detailed and sublimely beautiful images of space man has ever seen.

http://gnews.com/science/20-Years-of-Hubble-History-Under-The-Telescope-442254753140.html