@CNN: For the first time, scientists have been able to measure the amount of starlight produced by the observable universe over billions of years https://t.co/9WYrUX0hzz https://t.co/pG55fMV5QU

@CNN: For the first time, scientists have been able to measure the amount of starlight produced by the observable universe over billions of years https://t.co/9WYrUX0hzz https://t.co/pG55fMV5QU