Germany's beleaguered state railway operator Deutsche Bahn said Friday its losses widened last year and warned passengers to brace for less-than-perfect service for years to come.Speaking on Friday, Palla said it would take time for the railway to improve both its financial performance and its service.

Using the oldest dog genes studied so far, scientists are finding more evidence that our furry friends have been our companions for thousands of years. Scientists think dogs descended from an ancient population of gray wolves somewhere in Europe or Asia. Tens of thousands of years ago, those wolves got used to living with people and became less aggressive.

Using the James Webb Space Telescope, astronomers have discovered puzzling ultraviolet radiation around young stars in a stellar nursery.