Does it mean, if you don't understand something, and the community of physicists don't understand it, that means God did it? Is that how you want to play this game? Because if it is, here's a list of things in the past that the physicists at the time didn't understand [and now we do understand] [...]. If that's how you want to invoke your evidence for God, then God is an ever-receding pocket of scientific ignorance that's getting smaller and smaller and smaller as time moves on - so just be ready for that to happen, if that's how you want to come at the problem

Everything we do understand about the universe - the periodic table of elements, Einstein's laws, Newton's laws, all of chemistry, all of biology - that's 4 percent of the universe. We got to the moon on the 4 percent we do understand. We landed on Mars on the 4 percent we do understand. So the day we crack the nut of the rest of that 95 percent... Oh my gosh.

The most successful scientists in the history of the world are those who posed the right questions

Astronauts are the only kind of celebrity I know who can have a line of people waiting for their autograph, even if the line of people does not know in advance the astronaut's name.

If you're denying God's power, that means you don't really believe they were miracles, and so then why believe they happened at all. What you're saying is you're taking the Bible's account as literally true in need of a scientific explanation rather than just people coming up with stuff to fulfill their religious missions.

And extracting one molecule's signature in spectral analysis from the rest of the signatures is hard work, sort of like picking out the sound of your toddler's voice in a roomful of screaming children during playtime. It's hard, but you can do it.

Ever since there have been people, there have been explorers, looking in places where other hadn't been before. Not everyone does it, but we are part of a species where some members of the species do, to the benefit of us all.