Expedition 30 Flight Engineer Don Pettit shares a poem in his latest #spaceblog entry. http://go.usa.gov/meS
 
I Wonder Why
Nature has a vivid imagination, more so than any human. By venturing into unknown territory, discoveries will be made that tickle our imagination and enrich our minds.  On the frontier, you can once again see the world through the eyes of a child.
I wonder why the sky is up, and why the stars abound?
And why the Sun comes up each morn, and why the Earth goes ’round?
I wonder what the Sun on Mars, would bring at dusk and dawn?
I wonder what two moons would say, from Earth lit sky when Sun is gone
I wonder if Mars mountain crags would be a sight to hold?
I wonder if I’d dare to climb, how could I be so bold!
I wonder when Man’s mind will grow, and cease to be so small
I wonder when we’ll venture forth, I hope before we fall
I wonder if we’ll never dare, to reach up through the sky
Forever doomed to live on Earth, and this, I wonder why?
Don's blog also appears at airspacemag.com.
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