Alaska's rapidly disintegrating Columbia Glacier, which has shrunk in length by 9 miles since 1980, has reached the mid-point of its projected retreat, according to a new University of Colorado at ...

Investigators will conclude their inquiry into the Space Shuttle Columbia disintegration tomorrow when they issue an exhaustive review of NASA’s shuttle program and a scathing critique of agency ...

Accident investigators yesterday revealed a new danger to the fleet of space shuttles but said they are not changing their theory surrounding the probable cause of the Space Shuttle Columbia ...

The US space shuttle Discovery was launched just as scheduled Tuesday morning two and a half years after the Columbia disintegration grounded NASA's shuttle fleet. Amid heavy white smoke, glaring red ...