NASA's Chandra X-Ray Space Telescope Celebrates 15 Years of Discoveries
Wednesday, July 23, 2014 - 11:30
in Astronomy & Space
The agency's Chandra X-ray Observatory — one of NASA's 'Great Observatories,' along with the Hubble and Spitzer space telescopes and the now-retired Compton Gamma Ray Observatory — launched aboard the space shuttle Columbia on July 23, 1999.