Russian spacecraft leaks coolant, station crew reported safe

An uncrewed Russian supply ship docked at the International Space Station has leaked coolant, the Russian space corporation and NASA reported Saturday, saying the incident doesn't pose any danger to the station's crew.

Climate change may have toppled Hittite Empire: study

Three years of extreme drought may have brought about the collapse of the mighty Hittite Empire around 1200 BC, researchers have said, linking the plight of the fallen civilization to the modern world's climate crisis.