“The suppression of uncomfortable ideas…”

Carl Sagan describes our place in the universe

A Quantum Love Story featuring poetry by Ann Druyan with music by Tonio Sagan x Moon Hooch

Who Speaks For Earth?

Carl Sagan discussing Nuclear Winter with congress 1985

Carl Sagan teaching students about the Milky Way galaxy

The scientific illiteracy of Americans is scandalous

Carl Sagan calls out mainstream media

Carl Sagan on UFO’s - “Extraordinary claims require extraordinary evidence”

Carl Sagan on why NASA should go to mars

“The Persistence of Memory”

Carl Sagan on Star Wars in 1978

If we are not able to ask skeptical questions..

Laws of Nature

Carl Sagan on the silver lining behind solving our global environmental issues

We've arranged a society based on science and technology…

Carl Sagan talks nuclear war on Larry King Live

“In the Cosmos, there is no refuge from change.”

Carl Sagan explains how the Ancient Greek knew the earth was round

Imagine a room awash in gasoline - Carl Sagan

Why is the grass green? - Carl Sagan on The Tonight Show with Johnny Carson 1977