WHEN you look up at a nights sky, some stars may look like they twinkle blue or red.These red-hued specks are red dwarf stars, also called M-dwarfs.Wh. Jump directly to the content.

The Hubble Space Telescope has captured a dazzling view of a distant star cluster, one filled with stars that sparkle in red, white and blue, unveiled just in time for the Fourth of July U.S. holiday.