Merging White Dwarfs Create Helium Stars - Universe Today
Harlan J. Smith Telescope. Image credit: Marty Harris/McDonald Observatory. Click to enlarge An international group of astronomers has used the Hubble Space Telescope to determine the origin of an unusual class of objects called extreme helium stars. These objects are formed when two white dwarf stars merge together. Since they were first discovered more than … Continue reading "Merging White Dwarfs Create Helium Stars"