Here on Earth, we've found organisms that thrive in environmental conditions we would have once thought uninhabitable. The presence of these extremophiles suggests that life could potentially take hold on worlds other than our own. — Nick Sagan Copy Share Image
If someone was to introduce hope and idealism into our political system, I think the tension that would create in other areas would certainly be ripe. You would think that if you bring oxygen to the organism, the organism lives.… — Jon Stewart Copy Share Image
