Piece Of Space Shuttle Columbia Found In Dried Up Lake

Recovered debris from the space shuttle Columbia

The 1m-wide spherical tank was found in Lake Nacogdoches, near the Texas town of the same name where much of the debris initially fell.
The object, which is about 4 feet in diameter, was found in a local lake. NASA says it is a tank that provides power and water for shuttle missions.
By BBc and CNN