I recognize that there's an appetite that I'm now serving, and I'm happy to do so. I think it means quite a bit that science has achieved this level of public interest and access. And so I'm simultaneously astonished every day upon recognizing this, and I think it's a good sign for the country and possibly for the world.

If Mars formed life, then life on Earth could have been seeded by life on Mars, making every life form on Earth descended from Martians.

Need a distraction today? Not only does 12 + 1 = 11 + 2, but the letters "twelve plus one" rearrange to give you "eleven plus two."

But one of the coolest things about meteorites is that most were formed four-and-a-half-billion years ago, during the birth of our solar system, when, for reasons not yet known, a cloud of gas and dust was transformed into a sun with circling planets.

Science is not just a topic we can step around or ignore.

We went to the moon and discovered Earth.

My goal is not to shove information into your head. It's to find ways to reignite the curiosity that we all had as children for the natural world. You don't have to tell a child to explore the backyard.