The galaxy cluster (named MS 0735.6+7421 -- say that three times fast) is home to one of the most powerful eruptions ever observed. X-rays detected by NASA's Chandra X-Ray Observatory (blue) show the hot gas that comprises much of the mass of this enormous object. This image is part of a collection of new images released from the Chandra archive to celebrate American Archive Month. Credit: NASA #NASA #Chandra #xray #Earth #spacesaturday #solarsystem #planetary #science