A tiny slowdown in Earth's rotation next year could trigger more earthquakes than usual, new research suggests.
The exterior will be covered by an artificial mussel reef.
In this week's Maphead, Ken Jennings takes us to the most inaccessible place on Earth.
NASA's OCO-2 satellite observed carbon dioxide response to one of strongest El Niños on record.
From swinging tree-to-tree on an aerial adventure course in Stowe to gliding over the Finger Lakes in a two-seat sailplane, check out our favorite lesser-known ways to experience fall splendor across North America.