This is J0614-7251, a supernova remnant observed by XMM-Newton.
Read more about this discovery here!
[Image description: A colourful circle in the middle of this square image stands out against a pitch-black background. The circle reminds of a sugar-sweet candy, with a bright yellow centre with a pink ring around it. Around the centre, bluish green spots seem to be floating around in the image, that appear like air bubbles in the deep black sea.]