The name given to the SOUND generated by an aircraft that is travelling faster than the speed of sound. Sound is transmitted by pressure waves. These have a variable velocity dependent on the density of the medium through which they are travelling. In...

When an object moves through a fluid, it displaces that fluid in the form of a shock wave. The path left by a speedboat in water is an example of a shock wave. A sonic boom is a special kind of shock wave produced when an object travels though air at a...

The term sonic boom is commonly used to refer to the shocks caused by the supersonic flight of a military aircraft or passenger transports such as Concorde (Mach 2.02, no longer in service) and the Space Shuttle (up to Mach 27). Sonic booms generate...

The last time Ray Allen went on a scoring binge like this, he was portraying a fictional high school kid named Jesus Shuttlesworth.But there Allen was on Friday night backpedaling downcourt with a grin on his face, his arms pumping and even talking a little...

Residents from the Twin Cities to the southwestern corner of Minnesota and into Iowa reported seeing a flaming object shooting through the sky Wednesday, and experts said they may have been watching a meteor.Shortly after 2 p.m., people across the Twin Cities reported seeing a...

Space shuttle Discovery and its seven astronauts safely returned to Earth on Friday after some last-minute suspense over which landing site to use, closing out a year in which NASA finally got construction of the international space station back on track.Its arrival announced by its...

The space shuttle Atlantis and its seven astronauts returned to Earth safely Friday, ending a two-week mission to deliver an addition to the international space station and bring a crew member home from the outpost.Atlantis crossed the Pacific and glided to a stop at 12:49...