[/caption] The map above details the Galactic ridge X-ray emission, first detected 25 years ago and observed recently by NASA’s Rossi X-ray Timing Explorer (RXTE) observatory. The inset shows the zoomed Chandra image of the region, close to the center of the galaxy.  The mysterious — and formerly blurry — X-ray source puzzled astronomers for a … Continue reading Nearsighted No More: Astronomers Resolve Milky Way’s Mysterious X-Ray Glow