In all likelihood, June 30, 1908, began as a normal morning in Siberia. At last, the frozen boreal woods had given way to the thaw of early summer. The dawn was interrupted when a light nearly as ...

A team of scientists has finally located the impact crater from a “Doomsday” 1908 meteor strike that was one thousand times more powerful than the blast that leveled Hiroshima. You wouldn’t think ...

Ever been late because you misread a clock? Sometimes, the “clocks” geologists use to date events can also be misread. Unravelling Earth’s 4.5-billion-year history with rocks is tricky business. Case ...