Exploration has never been a safe occupation. For every significant discovery, there has been sacrifice by those seeking out ...

Space exploration has been marked by tragic disasters, such as the Apollo 1 fire, Soyuz 1 and 11 accidents, and the Space Shuttles Challenger and Columbia tragedies. These events emphasized ...

Five miners died on Monday and four were injured in an accident in a coal mine in the northern Spanish region of Asturias, the regional emergency services said. Two more workers were unharmed.