A Short History Of The Missing Universe

A Short History Of The Missing Universe
Astronomers have known where the universe’s missing matter has been hiding for the past 20 years. So why did it take so long to find it?

September 19, 2018 at 12:48PM
"Continue" https://ift.tt/2pmwyY1 - #uniteinmotherhood, #candidchildhood, #dailyparenting, #mytinymoments