Chandra X-ray Observatory - W44 is an expanding supernova remnant located about 9,000 light years from Earth in Aquila. X-rays from Chandra (blue) show hot gas of several million degrees filling the
File:425991main W44 multi.jpg - Wikimedia Commons
The SNR W44. Left: AGILE γ-ray intensity map between 400 MeV-1 GeV of... | Download Scientific Diagram