Public domain
History of Chandra X-Ray Observatory
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
This image shows the central region of the spiral galaxy NGC 4631 as seen edge-on from the Chandra X-Ray Observatory (CXO) and the Hubble Space Telescope (HST). The Chandra data, shown in blue and purple, provide the first unambiguous evidence for a halo of hot gas surrounding a galaxy that is very similar to our Milky Way.
NASA Image and Video Library’s own descriptionCredit lineHistory of Chandra X-Ray Observatory. NASA/MSFC, 2001-07-01. Public domain. ID: 0200205.