... In the foreground, a sea of light clouds slowly floated between dark mountain peaks. ... Images of the star forming region W5 like those in the infrared by NASA's Wide Field Infrared Survey Explorer (WISE) satellite provide clear clues with indications that massive stars near the center of empty cavities are older than stars near the edges. ... The Infrared Visible Andromeda . ... The field of view spans the Andromeda Galaxy (M31), a massive spiral a mere 2.5 million light-years away. ...