Catching glimpses of this landscape’s history — present but fading — Yvette wondered how she figured into it. Were any of her ...

People talk more about past events than future ones—and memories hold clues for navigating the present The arrival of a new ...

This week, uncover some of the oldest ice on Earth, follow a dinosaur highway, learn how Pluto sealed the capture of its moon ...

While at any point in time we believe we have a clear picture of our pasts, our pasts are in fact ever-changing. During times ...

People are getting less iodine because of changes in diet and food manufacturing. Most people are still getting enough, but ...