A spiral galaxy like our own glitters in a glorious new picture from NASA's Chandra X-Ray Observatory. The Whirlpool Galaxy — also known as M51 or NGC 5194 — swirls 30 million light-years away ...

Scientists have combined X-ray data (shown in purple) from NASA's Chandra ... to produce this image of Abell 383, a galaxy cluster 2.3 billion light years away. Abell 383 is 4.84 million light ...