Science & Health
Over a period of two-and-a-half years, NASAs Hubble Space Telescope observed the light echo of supernova SN 2014J in galaxy M82, located 11.4 million light-years away. The echo happens when light from the explosion bounces off a cloud of a giant cloud of gas and dust near the supernova.
Nov 10, 2017
Are humans on the verge of living forever? Accidents would be the only cause of death one day, says expert
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