(DOE/Oak Ridge National Laboratory) DOE has just released the 27th edition of the Transportation Energy Data Book. Specialized skills and instruments are helping a major manufacturer of microturbines make products expected to set new standards for performance and reliability.Fragments of tektites, natural glass objects, discovered by a team of geologists and geochemists help support a theory that a meteorite may be responsible for the sudden climate change that devastated large mammals in North America 11,000 years ago.