The asteroid believed to have triggered the end of the dinosaurs’ reign over the globe left a 180-kilometer-wide crater and caused massive climate upheaval. So when scientists discovered a gigantic ...

Picture yourself gazing at an endless expanse of perfectly flat and uniform snow stretching as far as your eyes can see. The Hiawatha Glacier, located in northwestern Greenland, is a giant glacier ...

Buried beneath a half mile of snow and ice in Greenland, scientists have uncovered an impact crater large enough to swallow the District of Columbia. The finding suggests that a giant iron asteroid ...