National Geographic

The little-known reptile from the Galapagos fills a crucial gap in the evolution of land iguanas, scientists say. But its future may not be as rosy.

The designation of nearly 200,000 square miles of pristine waters as marine monuments, including the deepest place on Earth, will be a "savings account" for the future, one conservationist says.

Asteroid debris around the remains of dead stars once like our sun show chemical signatures similar to the makeup of our solar system's terrestrial worlds, according to a new study.

A Texas-size asteroid may have sparked a U.S.-size landslide on ancient Mars, says a new study that hints at the origin of a mysterious red planet region.

The discovery of microscopic diamonds in 12,900-year-old soil supports the controversial idea that comet swarms caused a die-off of ice age mammals, a new study says.

A strike off Long Island may have sparked a tsunami that today would flood lower Manhattan, says a new study based on the discovery of telltale rocks.

See the National Geographic Digital Media photo editors' favorite photos from National Geographic News's 2008 "Week in Photos" galleries.

National Geographic News asked six science bloggers to each choose the most important, most overlooked, and strangest stories of 2008.

Just one second tacked on to the world's clocks in 2008 may create problems for systems dependent on time, such as navigation systems and stock exchanges.

The famous national park was jostled by more than 250 small, unusual earthquakes for a third straight day Monday, and scientists are watching closely to see whether severe volcanic activity is imminent.

The big cats originated in Africa or Asia, not North America as previously thought, according to a new study on a two-million-year-old skull.