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.
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 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.
Geologists in Hungary have been exploring a newfound underground lake beneath the capital, Budapest. The lake system is believed to extend 25 miles (40 kilometers).
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.
Astronomers have long argued over what the Star of Bethlehem was—if it existed at all. Today, two theories fight it out: a single planetary conjunction vs. a series of meaningful celestial events.
The aftermath of an earthquake, a friendly cow, and an ethereal Paris sunset are three of the six winners of the National Geographic International Photo Contest 2008.
See National Geographic News's most popular astronomy photos of 2008, including stunning supernova remains, exoplanet firsts, and a rare celestial smiley face.
