In 1977, Voyagers 1 and 2 took off from Cape Canaveral ... and took on iconic status when described by Carl Sagan as a "Pale Blue Dot" and "Earth in a Sunbeam." ...

This story appears in the August 2017 issue of National Geographic magazine. Carl Sagan spent his childhood immersed in Mars. The future scientist, an avid reader of Edgar Rice Burroughs’s ...

Carl Sagan, the astronomer, Pulitzer Prize-winning author, and legendary popularizer of science, gave this interview during the making of "Time Travel." True to form, he discusses arcane aspects ...

The famed astrophysicist Carl Sagan and former President ... wars in a “vast and awesome universe.” Sagan was instrumental in the launch of the Voyager 1 probe, which surveyed Jupiter and ...