A mysterious, one-off flash of energy from an unknown object outside the Milky Way has left astronomers puzzled.
The research team, led by Steven Dillmann of Stanford University was scouring decades-old data from NASA's Chandra X-ray Observatory when it spotted a powerful (but brief) blast of X-rays coming from within the Large Magellanic Cloud (LMC), a galaxy that orbits the Milky Way from roughly 160,000 light-years away.
