. >> o visions are mh more rcumribed. we do nothink about that.h more limit expectations of whate can do in space. s tt chang us? >> as a child, ante a star trek light. it ew older and lened about thunivse, to traveo the next-or nghbor star woul take 76,000 yrs durin current using curre techlogy so the universe isncrebly large. t i still thinkhat there are thgs wcan do. pele talk aut wormholes, bending ace d time. i am hopinghat bright spark t the will come up with a new ccept so we can tvel with an amazing dtanc. they' all b too far ay. >>s there anythg in science that has taken the pce of space exploration, something ateally fires our minds, gives u a difrentense of ourselves and our relationships to oururroundings? >> missouri very interest in an aa called synthetic biology. it looks at t gene. this is very different. are uerstanding howife is create a put togetr. ople are making artificial life in test tub. its notloni. it is aually takg bitsf dna inreating life. it opensp a whole new avenue. we can also tk about the extent ospace, the magnitu