NASA’s 25-Year Timelapse Shows How a Supernova Remnant Grows
A new NASA timelapse was two and a half decades in the making. What makes the timelapse of the Kepler Supernova Remnant even more spectacular is that it wasn't captured on Earth, but in space. The supernova remnant is a whopping 17,000 light-years away from Earth, or over 99 quadrillion miles.