are visible in this image captured by Cassini's visual and infrared mapping spectrometer during the flyby.
preserved in an egg-shaped space, indicates that early birds were well-developed at birth. The 121-million-year-old fossil, unearthed in northeast China, displays a large skull, developed feathers and a hardened skeleton--all precocial features...
has been burning and steaming in recent weeks, but when will it blow its lid? Research published in the current issue of Science suggests that monitoring the isotopic content of the gases the volcano is emitting now might help predict when--and how explosively--it will erupt...
Paleontologists have discovered in western Liaoning, China, the remains of a T. rex relative that had a coat of hairlike feathers.
--the first private manned spacecraft--completed a second flight past its target altitude of 100 kilometers on Monday, winning the $10-million Ansari X Prize.
in West Antarctica's Amundsen Sea Sector are thinning twice as fast near the coast as they did in the 1990s, researchers report.
returned to Earth on September 8, carrying samples of the solar wind. But a crash landing shattered the collector array material ( above ).
, the fourth storm of this year's Atlantic hurricane season, churns offshore in this satellite image taken on August 26.