Neil DeGrasse Tyson on 60 Minutes.

http://www.cbsnews.com/news/neil-degrasse-tyson-astrophysicist-charlie-rose-60-minutes/That little dot, Tyson tells us, is Earth, as photographed from Saturn by the Cassini spacecraft. But an earlier photograph was even more world-shattering, that taken of "earthrise" on the Moon by astronaut William Anders. This image, says Tyson, gave birth to the cosmic perspective in the collective imagination. He traces the origins of the ecological [...]