a revolutionary leap that could transform solar power from a marginal, boutique alternative into a mainstream energy source, MIT researchers have overcome a major barrier to large-scale solar power.

Geoscientists have long presumed that, like today, the tropics remained warm throughout Earth's last major glaciation 300 million years ago. New evidence, however, indicates that cold temperatures in fact episodically gripped these equatorial latitudes at

Laboratory tests aboard NASA's Phoenix Mars Lander have identified water in a soil sample.

Data breaches are a recurring nightmare for IT managers responsible for securing not only their company's confidential data, but possibly also sensitive information belonging to their clients, such as social security numbers or health or financial records

Pete Engardio, senior writer for BusinessWeek, sees Americans remaining at the forefront of innovative R&D and having an opportunity to remain ahead, despite increasingly stiff global competition.

Researchers in Germany, Switzerland, and the United States have shown, for the first time, that an extremely fast climate change occurred in Western Europe.

Criminals who use firearms may find it much harder to evade justice in future, thanks to an ingenious new bullet tagging technology.

War casualties are typically kept behind tightly closed doors, but one company keeps the mangled pieces of its first casualty on display. This is no ordinary soldier, though — it is Packbot from the iRobot Corporation.

When Yale astrophysicist Kevin Schawinski and his colleagues at Oxford University enlisted public support in cataloging galaxies, they never envisioned the strange object Hanny van Arkel found in archived images of the night sky.

Scientists working in an ice-free region of Antarctica have discovered the last traces of tundra--in the form of fossilized plants and insects--on the interior of the southernmost continent before temperatures began a relentless drop millions of years ago