The new Unmanned Systems Forces was created to oversee Russia's drone operations, development, testing and training.

An oil spill in the Gulf of Mexico in early March spread more than 600 kilometers (373 miles), including to seven nature reserves, and originated from a vessel yet to be identified and two “natural seepages,” Mexican authorities announced Thursday. Authorities, however, ruled out the possibility of severe environmental damage from the spill off coast of the eastern state of Veracruz. Navy secretary, Admiral Raymundo Morales, said satellite image analysis and inspections of the area identified

By Will Dunham WASHINGTON (Reuters) -Scientists have solved the mystery of 3.4 million-year-old fossils called the "Burtele Foot" discovered in Ethiopia in 2009, finding they belonged to an enigmatic