Teamwork makes the dream work! ✨ Combining X-ray data from NASAChandraXray, optical data from NASAHubble, and infrared data from the retired Spitzer Space Telescope, an international team of astronomers has “wound back the clock” to help determine the timeline of a distant star’s demise. Located in the Large Magellanic Cloud, a small galaxy 160,000 light years from Earth, the supernova remnant is the debris from an explosion of a white dwarf star. After reaching a critical mass, either by pulling matter from a neighboring star or by merging with another white dwarf, the star underwent a thermonuclear explosion and was destroyed. The researchers compared Hubble images of the area from 2010, 2011, and 2020 to measure the speeds of material in the blast wave from the explosion. If the speed was toward the upper end of estimates, the astronomers determined that light from the explosion would have reached Earth about 670 years ago. However, further investigation revealed that it’s likel...