Carl Sagan

NASA shares a family portrait of the inner solar system, starring Saturn

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It’s hard to fathom our place in the solar system, until you look at a picture of Earth taken from near Saturn. NASA just released this composite photo, snapped by the Cassini space probe in July. Earth, Venus and Mars are all visible, but just pinpricks of light.

John Hodgman interviews Neil deGrasse Tyson

Environment

The legacy of Carl Sagan

Environment