A Star’s Unusual Atmosphere Uncovered

A Star’s Unusual Atmosphere Uncovered

A Star’s Unusual Atmosphere Uncovered | Hubble Space TelescopeAstronomers using NASA’s Hubble Space Telescope have found a rare ultra massive white dwarf formed from a stellar merger. The discovery was made possible by Hubble’s sensitive ultraviolet observations and suggests these unusual white dwarfs may be more common than once thought.The white dwarf is 128 light-years away and 20 percent more massive than the Sun. In visible light it looked …