Whipping his racquet through the air like a cesta in jai alai, Rafael Nadal produces such tremendous topspin that the ball sometimes seems to catapult off the court, creating a shot as challenging to ...

Black holes aren’t surrounded by a burning ring of fire after all, suggests new research. Some physicists have believed in a “firewall” around the perimeter of a black hole that would incinerate ...

Black holes aren't surrounded by a burning ring of fire after all, suggests new research. Black holes aren't surrounded by a burning ring of fire after all, suggests new research. Some physicists have ...