Chandra X-ray observations of the giant elliptical galaxy NGC 6482, at the centre of this image, show that it is surrounded by a cloud of hot gas (shown in blue), which has a temperature of about 10 million degrees Celsius and measures over 700,000 light years across. This giant galaxy is believed to have grown to its present size by cannibalising its neighbours, leaving only the X-ray halo to tell the tale.