Researchers rewind the clock to calculate age and site of supernova blast

Astronomers are winding back the clock on the expanding remains of a nearby, exploded star. By using NASA's Hubble Space Telescope, they retraced the speedy shrapnel from the blast to calculate a more accurate estimate of the location and time of the stellar detonation.

from Top Technology News -- ScienceDaily https://ift.tt/35K6Xhz

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