The cell was a black box to Darwin and his contemporaries. Today we can explore that black box like never before.
Imagine that you are an astronomer on a world with one moon. It is always night on your world, and the moon is the only body in the sky.
I remember watching the Apollo moon landings on TV from 1969 to 1972 as a child.
A mysterious oblong object, ‘Oumuamua, was observed a couple of years ago, transiting across the Solar System.
Adam Kirsch over the weekend had a thoughtful essay in the Wall Street Journal, meditating on the coming 50th anniversary of the first moon landing.