The Vela supercluster, which had previously gone undetected as it was hidden by stars and dust in the Milky Way, is a huge mass that influenced the motion of our Galaxy.
A recently discovered galaxy is undergoing an extraordinary boom of stellar construction, revealed by a group of astronomers led by University of Florida graduate student Jingzhe Ma using NASA's Chandra X-Ray Observatory.
This delicate blue group of stars — actually an irregular galaxy named IC 3583 — sits some 30 million light-years away in the constellation of Virgo (The Virgin).