Curious Archive on MSN

The best number of legs has a real answer — here it is

Every leg count from zero to forty-plus represents a different evolutionary trade-off between stability, speed, ...
Sam Eckholm on MSN

Watch a US Air Force U-2 spy plane climb to 70,000 feet above Earth

Travel aboard a U.S. Air Force U-2 Dragon Lady spy plane on a rare flight to approximately 70,000 feet above Earth. At Beale ...