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.

The number of people in the world engaged in this search for catastrophic impactors totals one or two dozen. How long into the future are you willing to protect Homo sapiens on Earth? Before you answer that question, take a detour to Arizona's Meteor Crater during your next vacation.

Santa knows Physics: Of all colors, Red Light penetrates fog best. That's why Benny the Blue-nosed reindeer never got the gig.

NASA has spin-offs, and it's a huge and very impressive list, including accurate and affordable LASIK eye surgery.

The Earth is just one place of many that we could hang our hats.

Imagination alone is not enough, because the reality of nature is far more wondrous than anything we can imagine

Does the full moon affect people's behavior, you ask? Yup. It makes people think the full moon affects people's behavior.