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 most distant x-ray cluster of galaxies yet has been found by astronomers using Chandra X-ray Observatory (CXO). Approximately 10 billion light-years from Earth, the cluster 3C294 is 40 percent farther than the next most distant x-ray galaxy cluster. The existence of such a faraway cluster is important for understanding how the universe evolved.
NASA Image and Video Library’s own descriptionCredit lineHistory of Chandra X-Ray Observatory. NASA/MSFC, 2000-10-01. Public domain. ID: 0200207.
