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 ...

Defense secretary nominee will publicly face senators for the first time after weeks of privately pushing back on criticism ...