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Famous Space Exploration Quotes

"That's one small step for man, one giant leap for mankind."

— Neil Armstrong, Apollo 11 astronaut, first person to walk on the Moon

"The Earth is the cradle of humanity, but mankind cannot stay in the cradle forever."

— Konstantin Tsiolkovsky, founding father of astronautics and rocketry

"Somewhere, something incredible is waiting to be known."

— Carl Sagan, astronomer, cosmologist, and science communicator

"The universe is under no obligation to make sense to you."

— Neil deGrasse Tyson, astrophysicist and science communicator

"We are all made of star stuff."

— Carl Sagan, from Cosmos: A Personal Voyage

"Space is for everybody. It's not just for a few people in science or math, or for a select group of astronauts."

— Christa McAuliffe, NASA Teacher in Space Project astronaut

"The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself."

— Carl Sagan, from Cosmos: A Personal Voyage

"I don't think the human race will survive the next thousand years, unless we spread into space."

— Stephen Hawking, theoretical physicist and cosmologist

"For all its material advantages, the sedentary life has left us edgy, unfulfilled. Even after 400 generations in villages and cities, we haven't forgotten. The open road still softly calls."

— Carl Sagan, from Pale Blue Dot

"Earth is a small town with many neighborhoods in a very big universe."

— Ron Garan, NASA astronaut and author

Featuring daily-rotating Hubble Space Telescope imagery including the Pillars of Creation, Carina Nebula, Tarantula Nebula, Eagle Nebula, Orion Nebula, Phantom Galaxy, and Westerlund 2 star cluster. New quote displayed on every visit.