Scientist Spots What May Be Missing Mars Polar Lander NASA Craft Vanished During a Landing Attempt on Red Planet Six Years Ago By ALICIA CHANG, AP A NASA image may show the craft's parachute. A white dot labeled MPL a few hundred yards away could be the lander. LOS ANGELES (May 6) - Nearly six years after NASA's Mars Polar Lander vanished during a landing attempt on the Red Planet, a scientist said he has spotted what appears to be wreckage of the spacecraft. The observation came during a re-examination of grainy, black-and-white images taken by the orbiting Mars Global...