The Hubble Space Telescope has spotted the farthest supernova yet seen of type la, which are used as 'standard candles' to measure cosmic distance. The 10-billion-year-old supernova UDSlOWil was spotted in 2010 by Hubble's near-infrared Wide Field Camera 3; it took three years for David Jones at Johns Hopkins University in Baltimore, Maryland and his colleagues to complete their analysis of the find, which is 350 million years older than the previous record holder.
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