Related by context. Frequent words. (Click for all words.) 43 answering 43 manned spaceflight 38 question 37 Stephen Hawking 37 questioner 36 inquirer 36 questions 36 quantum theory 36 manned missions 36 robotic spacecraft 35 Professor Hawking 35 rephrased 35 answer 34 Big Bang theory 34 answers 34 Hawking 34 FLATOW 34 quantifying 33 cosmology 33 quantum physics 33 deciphering 33 Excuse me 33 yes 33 spaceflight 32 ethical dilemmas 32 mathematical calculations 32 Einstein theory 32 manned spacecraft 32 astrophysics 32 outer space 32 humanoid robots 32 demystifying 32 cosmologists 32 Carl Sagan 32 compartmentalizing 31 epistemological 31 reorienting 31 particle physics 31 questioners 31 solving 31 mathematician 31 astrophysicist 31 ontological 31 rhetorically 31 sir 31 interviewer 31 query 30 Ray Kurzweil 30 cosmos 30 extraterrestrials 30 tersely 30 prefacing 30 interviewers 30 Einstein 30 facetiously 30 physicists 30 Feynman 30 impertinent 30 Yuri Gagarin 30 theoretical physics 30 quantum mechanics 30 visualizing 30 Ask yourself 30 quizzically 30 Craig Venter 30 politely 30 INSKEEP 29 Rubik cube 29 phrased 29 smilingly 29 rationality 29 obliquely 29 brusquely 29 singularity 29 riddles 29 empirical 29 sheepishly 29 incredulously 29 queries 29 answering questions 29 figuring 29 calibrating 29 cosmologist 29 astrophysicists 29 Templeton Prize 29 unasked 29 hypotheses 29 testily 29 recalculating 29 mathematical algorithms 29 existential 29 Hubble Telescope 29 verbalizing 29 indignantly 29 semantics 29 ask 28 evolution 28 Peter Diamandis 28 answered 28 ma'am 28 Albert Einstein