From the perspective of the helicopter cockpit, the lights of the incoming American Airlines jet could have also been ...

Researchers may have found the hidden tunnels beneath a castle in Milan that Leonardo da Vinci sketched in 1495.

A centuries-old sketch by Leonardo da Vinci has led archaeologists to a hidden labyrinth of tunnels beneath Sforza Castle in ...

Ukrainians are creating their own decoy models of F-16 fighters to confuse the enemy. Available information indicates that a ...