The Hubble Space Telescope has revealed the remains of a stellar explosion. It happened in a neighboring galaxy.
Hubble photographed the object DEM L249, which is located in the Large Magellanic Cloud (LMC), a dwarf galaxy and satellite of the Milky Way, located more than 160 thousand light-years from Earth.
The bright red stripes of gas in the image are the result of a white dwarf explosion that exploded in a type la supernova. According to NASA, Hubble photographed DEM L249 while exploring the LMC in search of surviving white dwarf stellar satellites that had already exploded.
“White dwarfs are usually stable, but when it is in a binary star system, it can gravitationally pull so much matter from its companion that it reaches critical mass and explodes,” NASA officials said in a statement.
DEM L249 is a very unusual supernova remnant, it was a massive and relatively young white dwarf when it died. Using NASA’s Chandra X-ray Observatory and the European Space Agency’s (ESA) XMM-Newton Space Observatory, astronomers found that DEM L249 gas was hotter and brighter than other Type Ia supernova remnants.