When many stars reach billions of years in age and run out of fuel, they become dying stars known as red ... of a planet-forming region, even though planets are not forming here, in the aftermath ...

Kohoutek 4-55 is a dazzling planetary nebula captured in vivid color by the Hubble Space Telescope. Formed by the dramatic ...

An artist’s concept of the famous Wolf-Rayet 104 “pinwheel star,” previously nicknamed the “Death Star.” An artist’s concept of the famous Wolf-Rayet 104 “pinwheel star ...