It's Our Destiny To Explore.

Curiosity Is The Essence Of Human Existence And Exploration Has Been Part Of Humankind For A Long Time. The Exploration Of Space, Like The Exploration Of Life, If You Will, Is A Risk. We've Got To Be Willing To Take It.

We Will Certainly See Teachers, Journalists, Artists And Poets In Space. Whatever It Takes To The Be The Best Is What It Will Take To Get You Into Space.

Some Astronauts Describe The Routine Flushing Of Urine Into Space, Where The Freezing Temperatures Turn The Droplets Into A Cloud Of Bright, Drifting Crystals, As Being Among The Most Amazing Sights They Saw On An Entire Voyage.

As I Take Man's Last Step From The Surface, Back Home For Some Time To Come...i'd Like To Just (say) What I Believe History Will Record. That America's Challenge Of Today Has Forged Man's Destiny Of Tomorrow. As We Leave The Moon At Taurus- Littrow, We Leave As We Came And, God Willing, As We Shall Return, With Peace And Hope For All Mankind. "godspeed The Crew Of Apollo 17."

Chemical Propulsion Is Obsolete To Go Anywhere Other Than The Moon. Three Days - That's Acceptable. But For Mars, We Need Propulsion Technologies To Get Us There In, Say, 60 Days - Then Spend Whatever Length Of Time We Want To Spend And Return When We Want To Come Home.