Great photo of Earth taken by Voyager 1 in 1990 that was used in a lecture given by Carl Sagan. “That’s home. That’s us. On it, everyone you ever heard of, every human being who ever lived… The aggregate of all our joys and sufferings, thousands of confident religions, ideologies and economic doctrines… every creator and destroyer of civilizations… every young couple in love… every corrupt politician, every superstar, every supreme leader, every saint and sinner in the history of our species, lived there on a mote of dust, suspended in a sunbeam.”