New observations made with NASA’s Chandra X-ray Observatory, ESA’s XMM-Newton, and Japan’s Suzaku have provided evidence that our Galaxy is embedded in an enormous halo of hot gas that extends for hundreds of thousands of light years. An artist’s illustration shows an enormous halo of hot gas around the Milky Way Galaxy, Small and Large Magellanic Clouds (NASA / CXC / M.Weiss / Ohio State / A. Gupta et al) This artist’s...
