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.
This is the best kind of DIY project: Something that only requires a screwdriver. Even most electronic locks are installed the same way these days, so there is no need to pay somebody the cost of ...
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 ...