Public domain
Galaxy Cluster Abell 1689
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
Image release August 19, 2010 An international team of astronomers using gravitational lensing observations from the NASA/ESA Hubble Space Telescope has taken an important step forward in the quest to solve the riddle of dark energy, a phenomenon which mysteriously appears to power the Universe's accelerating expansion. Their results appear in the 20 August 2010 issue of the journal Science.
NASA Image and Video Library’s own descriptionSubjects
Credit lineGalaxy Cluster Abell 1689. NASA/GSFC, 2017-12-08. Public domain. ID: GSFC_20171208_Archive_e001983.