Titanic explorer to search for Amelia Earhart's plane

Robert Ballard, the underwater explorer who found the Titanic, has a new quest -- searching for the plane of famed aviatrix Amelia Earhart, who disappeared over the Pacific in 1937. National Geographic said Ballard plans to leave from Samoa on August 7 to carry out the hunt with his state-of-the-art research vessel E/V Nautilus. National Geographic said it plans to film the expedition and air a documentary about it on its television channel on October 20.