CNN’s Ben Wedeman dives deep underground in Rome to explore the Aqua Virgo, an ancient aqueduct that continues to supply water to the Trevi Fountain and other landmarks. Marketing health foods is a ...

New research of a Martian meteorite suggests that water - an essential ingredient for life - arose in hot springs on Mars 4.4 billion years ago, at the same time as it did on Earth.

Fascinating drops from Böker, Spyderco, Al Mar and other beloved brands highlight this roundup of sharp and shiny objects.