When Venus Was Filled With Venusians ? 50 Billion Of Them

Look up at the night sky and ask, "Anybody there?" Then consider this answer (from the 1830s): There are 22 trillion individuals in our solar system.

Source: http://www.npr.org/blogs/krulwich/2014/08/21/342025056/when-venus-was-filled-with-venusians-50-billion-of-them?utm_medium=RSS&utm_campaign=science

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