Carl Sagan

Famed astronomer Carl Sagan once explained the 4th dimension by telling a story: the trip from “Flatland” to beyond!

Buzz Aldrin addressed claims that his walk on the moon was a hoax, spoke of why private flights to Mars aren’t the way to go, and praised Carl Sagan’s dance moves, on Reddit Tuesday.

NASA plans to send a message out to the New Horizons probe before it leaves our solar system, a message that could reach extraterrestrials. You can submit your ideas soon.

From Albert Einstein to Carl Sagan to Niels Bohr, many great physicists also had a way with words. The fields of philosophy and science are linked by curiosity. Read these quotes that will make you reflect on the nature of science and the universe.

Scientists face off on how oil formed in the Earth. A change in perspective could radically change the industry, and the politics, of oil.

Astrophysicist Neil deGrasse Tyson’s smooth voice and cool manner steered the Ship of Imagination through the known history of the cosmos ...