Discussing Quote by Anonymous

The possibility of reduced-time interstellar travel either by advanced extraterrestrial civilizations at present or ourselves in the future, is not fundamentally constrained by physical…

— Harold E. Puthoff

If interstellar travel is as time- or energy- demanding as the above figures indicate, it is far from obvious what the motive for colonization…

— Anonymous

The energy requirements for interstellar travel are so great that it is inconceivable to me that any creatures piloting their ships across the vast…

— Isaac Asimov

At two-tenths the speed of light, dust and atoms might not do significant damage even in a voyage of 40 years, but the faster…

— Isaac Asimov

Nuclear fusion of light elements like hydrogen or helium would permit approaching the speed of light. It seems very attractive to refuel your space…

— Wilson Greatbatch

“The simple truth is that interstellar distance will not fit the human imagination.”

— Douglas Adams

“A measure of the strength of a body's gravity is the speed with which a projectile must be fired to escape its grasp. It…

— Martin Rees

“an electron accelerated to .9999999999999999999999999999999999999999999999999 9999999999999 times the speed of light would hit you with the same impact as a Mack truck traveling at normal speed.”

— Lawrence M. Krauss

With our present knowledge, we can respond to the challenge of stellar space flight solely with intellectual concepts and purely hypothetical analysis. Hardware solutions…

— Wernher von Braun

“mass and energy have an equivalence. They are two forms of the same thing: energy is liberated matter; matter is energy waiting to happen.…

— Bill Bryson

When you're doing a film called 'Interstellar,' at some point - the idea was to be grounded in the science as much as possible…

— Jonathan Nolan

Our knowledge of stars and interstellar matter must be based primarily on the electromagnetic radiation which reaches us. Nature has thoughtfully provided us with…

— Lyman Spitzer