Alive Quote by Carl Sagan

Since, in the long run, every planetary civilization will be endangered by impacts from space, every surviving civilization is obliged to become spacefaring--not because…

— Carl Sagan

If our long-term survival is at stake, we have a basic responsibility to our species to venture to other worlds. Sailors on a becalmed…

— Carl Sagan

All civilizations become either spacefaring or extinct.

— Carl Sagan

Space exploration is important research to our economic and national defense, and America's space program is a symbol of our success as a scientifically…

— Randy Forbes

“Just because your electronics are better than ours, you aren't necessarily superior in any way. Look, imagine that you humans are a man in…

— George Alec Effinger

“We are in the process of finding out what filling the sky with hundreds of thousands of satellites does to all life on Earth.”

— Steven Magee

By refocusing our space program on Mars for America's future, we can restore the sense of wonder and adventure in space exploration that we…

— Buzz Aldrin

A sense of the unknown has always lured mankind and the greatest of the unknowns of today is outer space. The terrors, the joys…

— William Shatner

The dinosaurs became extinct because they didn't have a space program.

— Larry Niven

The dinosaurs became extinct because they didn't have a space program. And if we become extinct because we don't have a space program, it'll…

— Larry Niven

I believe we can do more in making the President's vision for space exploration a reality by awarding cash prizes to encourage greater participation…

— Dana Rohrabacher

“Another principle that I believe can be justified by scientific evidence so far is that nobody is going to emigrate from this planet not…

— Edward O. Wilson