Right now we still have the great mystery of quantum mechanics doesn't seem to describe gravity.

Can we find places that are like home?

Little Earth's orbiting stars like the Sun.

When you look at the history of Earth, you see the history of the different forms of life growing.

It's taken all of the entire history of the universe for us to turn up.

We start off with, that can't be done, that's impossible. Then somebody

invents something and then somebody wants some more and gradually we invest our

billions or trillions as it takes because there's a demand for it.

Please build us another telescope to look farther back because we've got a big mystery here.

Artificial limbs, precision GPS,

Firefighter suits, insulin pumps, emergency blankets,

air purifiers, even the dustbuster.

Now, what do all of these things have in common? Well, these were actually

all innovations developed through the pursuit of space.

And I think there's something really profound there.

Through our collective deep desire

to understand our past and all that we came from,

we've created technologies that enhance our future. I think it's also an important reminder that history is riddled with people we think they know what is best to build.

Without realizing that there are so many great things that have sprouted from projects

that didn't seem immediately useful at the time.

And that's why today I am so excited about our guest.

Astrophysicist John Mather.

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