XMM-Newton observations
XMM-Newton's X-ray EPIC camera shows the expanding rings caused by a flash of X-rays scattered by dust in our Galaxy. The slowly fading afterglow of the gamma-ray burst is at the centre of the expanding rings. The time since the gamma-ray explosion is shown in each panel in hours. At their largest size, the rings would appear in the sky about five times smaller than the full moon (Credit: ESA, S. Vaughan University of Leicester)
Movie of observations
