25 Years Ago: STS-93, Launch of the Chandra X-Ray Observatory nasa.gov/history/25-years-ago-… #NASA #NASAHistory
25 Years Ago: STS-93, Launch of the Chandra X-Ray Observatory - NASA
On July 23, 1999, space shuttle Columbia took to the skies on its 26th trip into space, to deliver its heaviest payload ever – the Chandra X-ray Observatory.Kelli Mars (NASA)