When I was a child growing up in Maine, one of my favorite things to do was to look for sand dollars on the seashores of Maine, because my parents told me it would bring me luck. But you know, these shells, they're hard to find. They're covered in sand. They're difficult to see.

Archaeology holds all the keys to understanding who we are and where we come from.

It's absolutely critical, you know, to train young men and women not just to find sites, but also to protect sites, especially in the wake of the Arab Spring. There's been significant site-looting in Egypt and elsewhere across the Middle East.

WorldView-3 goes into the mid-infrared wavelength, allowing you to see very subtle geological differences on the sites at a 0.4-metre resolution.

I would still describe myself as a hacker. I still remember feeling the magic, the sense of discovery, when I first connected to a bulletin board. It seemed like the world was somehow brighter, the greens were greener. Like I'd stepped through a portal to the other side. I knew back then that things would never be the same again for me.

My big running discovery was around Stanley Park in Vancouver. Miss it. That's a six-mile loop. Now I smile when I get four miles done. Age is a beast.

My present work concerns the problems connected with the theory of elementary particles, the theory of gravitation and cosmology and I shall be glad if I can manage to make some contribution to these important branches of science.

Science has advanced a long way in the 44 years since Roe v. Wade, and it is time that our laws reflect the undeniable truth that life begins at fertilization and that unborn citizens are entitled to the same protections as every American.