Science

Who Were Your Millionth-Great-Grandparents?

Our pre-human ancestors are back there somewhere in the deep time that makes up Earth's braided history of life and change — and we are the tip of the spear moving that life forward, says Adam Frank.

When Your Hand Has A Mind Of Its Own

What happens when you think and how you act don't align? We tell the story of a woman diagnosed with what's known as "alien hand syndrome."