Beloved astronomer Carl Sagan made a prescient prediction about a populist "charlatan" that seems to have come true decades ...

Carl Sagan with the famous message sent on Pioneer probes, 1974. By then he knew we might find life closer to home. Credit: CBS via Getty Images Millions of space nerds reacted with joy Monday to ...

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 ...

A detection of life would be a remarkable development. The astronomer Carl Sagan used the phrase, "Extraordinary claims require extraordinary evidence," in regard to searching for alien life.

SAGAN: I personally have been captured by the notion of extraterrestrial life, and especially extraterrestrial intelligence from childhood. It swept me up, and I've been involved in sending space ...

That’s the premise behind “Utopian Hotline,” an unusual, immersive performance piece presented at the Museum of Science ...

Carl Sagan, the distinguished Cornell University astronomer and Pulitzer Prize-winning author, who succumbed to his battle against cancer on December 15, in fact lived for millions of years in the ...

In the preface to his book The DemonHaunted World, Carl Sagan, the famous astronomer, recalled that when he was studying at ...

As the great astronomer Carl Sagan once said: “If I finish a book a week, I will read only a few thousand books in my lifetime, about a tenth of a percent of the contents of the greatest ...