Chandra X-Ray observatory, named after Subrahmanyan Chandrasekhar, has provided scientists with the best x-ray images ever taken of the universe. To explore the satellite’s mission and its discoveries, I would recommend reading The Restless Universe: Understanding X-Ray Astronomy in the Age of Chandra and Newton by Eric Schlegel.

NGC 922 – X-Ray
NGC 922 – Optical
NGC 922 – X-Ray and Optical