Carl Sagan

American astronomer, cosmologist, astrophysicist, astrobiologist, author, science popularizer, and science communicator in astronomy and other natural sciences.

[Carl Sagan @CarlSeggy]

DYK!Sagan's last interview:Carl Sagan was interviewed by Charlie Rose, in which he discussed the rise of pseudoscience in the United States.

[Carl Sagan @CarlSeggy]

DYK! After Sagan served five years at the esteemed university as an assistant professor, Harvard denied him tenure in 1967.

[Carl Sagan @CarlSeggy]

@urhiddenfigure @xSirIsaacNewton @JohannesKeple_r hey hey hey!

[Carl Sagan @CarlSeggy]

@CarlSeggy SO.MANY.DOTS.#littleplacecalledhome

[Carl Sagan @CarlSeggy]

"It’s hard to talk about the Cosmos without using big numbers."

[Carl Sagan @CarlSeggy]

Turtlenecks don't make me look stupid. It's my signature look. #Original

[Carl Sagan @CarlSeggy]

Brainy quote: "The universe is not required to be in perfect harmony with human ambition."

-Me

[Carl Sagan @CarlSeggy]

I have a small asteroid in the main asteroid belt between Mars and Jupiter named after me called the 2709 Sagan. #famous