... Eta Carinae, one of the most massive and unstable stars in the Milky Way Galaxy, has a profound effect on its environment. ... To better understand this complex and chaotic process, astronomers used the Hubble Space Telescope to image in unprecedented detail the star forming region LH 95 in the nearby Large Magellanic Cloud galaxy. An Avalanche on Mars . ... The first avalanche imaged in progress on another planet was recorded last month on Mars by NASA's robotic Mars Reconnaissance Orbiter. ...