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Astronomers measured all the light from the stars in 13.7 billion years

Astronomers measured all the light from the stars in 13.7 billion years

Image credit: Alan Dyer/Getty Images

Astronomers have the impossible possible and put a number to all the light from all the stars that have ever existed. This has never been done before and humongous amounts of research went inside it. According to the estimate stars have radiated 4,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 photons. The latest observations have been collected for last nine years.

read more at The Guardian

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