Published on August 26, 2017
Scientists hoped that NASA’s Chandra X-ray Observatory would locate X-ray sources correlated to the gamma-ray flares seen by Fermi and Italy’s AGILE satellites. Two observations were made during the April 2011 superflare, but there’s no clear evidence of them in the Chandra images. Credit: NASA/CXC/M. Weisskopf and A. Tennant
