 Here we see the pairing of the Wolf Riot Star WR124 and the Nebula M167, which surrounds it. Both objects, captured here by Hubble, lie 15,000 light-years away. The star shines brightly at the very center of this explosive image, and around the hot clumps of gas that are ejected into space at over 150,000 kilometers per hour. That's 93,000 miles per hour. The Nebula is estimated to be no more than 10,000 years old, which is quite young in astronomical terms. A version of this image was released in 1998, but has now been re-reduced with the latest software. Wolf Riot stars are a rare set of very hot stars with spectra that indicate a very high surface content of heavy elements, little or no hydrogen, and strong stellar winds. Their surface temperatures range from 30,000 to 210,000 degrees Kelvin. That's hotter than almost all of their stars. These stars are older, massive stars that have completely lost their outer hydrogen and are fusing helium or heavier elements in the core.