RT @brianshaler: For EACH human on Earth (~6,790,000,000 of us), there are about 10,300,000,000,000 stars (that we've observed) http://b ...
RT @brianshaler: For EACH human on Earth (~6,790,000,000 of us), there are about 10,300,000,000,000 stars (that we've observed) http://b ...