The historian and TV presenter shares her most memorable experiences, from Greek sailing voyages to silk road adventures.

Mars once had active volcanoes, like Olympus Mons, which is three times higher than Everest, and so massive that when it ...

With massive heat waves and an intense El Niño reshaping the marine food web along the Central Coast of California, emaciated ...

But researchers say there are ways to preserve strength and independence as we age. Frailty may seem like a problem for old ...