The 2011 earthquake that devastated northern Japan slid along a thick layer of nearly frictionless clay called 'smectite', say scientists who made the first-ever friction measurements of an earthquake.
Typhoon Haiyan is strengthening as it approaches the Philippines, with wind gusts of 162 mph, the equivalent of a Cat. 5 hurricane. Typhoon Haiyan is the strongest tropical cyclone in the world this year.
If all goes well with Wednesday's launch, the Orbital Sciences' Cygnus spacecraft will be the second private American spacecraft to dock with the International Space Station. How does the Cygnus stack up against its rival, SpaceX's Dragon capsule?