Scientists Measured All the Light Ever Produced in the Universe

Almost every point of light you see in the night sky is a star — a huge, broiling sun smashing atoms together to produce electromagnetic energy many light-years away. If we’re going to understand more about what makes those stars form, shine, and die, we need to start by measuring them. Recently, scientists from Clemson University made one particularly awe-inspiring measurement: they figured out how much starlight has ever been produced in the universe. And it’s a very, very big number.

— Read on

Very cool

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