(AP) -- Yale University has agreed to return thousands of Inca artifacts taken from Peru's famed Machu Picchu citadel almost a century ago, the government said Saturday.

(AP) -- Douglas Eugene "Gene" Savoy, an explorer who discovered more than 40 lost cities in Peru and led long-distance sailing adventures to learn more about ancient cultures, has died. He was 80.

Harvard Medical School researchers have successfully synthesized a DNA-based memory loop in yeast cells, findings that mark a significant step forward in the emerging field of synthetic biology.

Many neuronal disorders, including epilepsy, schizophrenia and lissencephaly - a form of mental retardation -, result from abnormal migration of nerve cells during the development of the brain. Researchers from the Mouse Biology Unit of the European Molecular Biology Laboratory (EMBL) in Italy, have now discovered that a protein that helps organising the cells` skeleton is crucial for preventing...

Volkswagen's luxury car division Bentley wants to make its models more environmentally friendly and to edge closer to proposed EU limits, the financial daily Handelsblatt reported Friday, citing Bentley head Franz-Josef Paefgen.

Human security and technologies from cell phones to weather forecasts are more at risk than ever from anti-satellite weapons and space junk, said a research report released Friday.

(AP) -- We're used to computers becoming obsolete almost as soon as they leave the store because of rapid advances in chip technology, but the whole science of silicon chips is starting to show its age.

(AP) -- When Europe's second-highest court rules Monday on Microsoft Corp.'s appeal of its landmark antitrust conviction, more will be at stake for regulators than just the behavior of the world's largest software company.

(AP) -- Billionaire activist investor Carl Icahn on Friday called for the sale of BEA Systems Inc., a business software maker whose stock price has sagged with the growth in open-source software and under pressure from larger competitors such as IBM Corp. and Oracle Corp.

(AP) -- The SCO Group Inc., licenser of the Unix operating system, filed for bankruptcy protection Friday, drained by unsuccessfully filing lawsuits claiming its software code was misappropriated by developers of the open-source Linux operating system.

(AP) -- Apple Inc. has begun allowing people who bought iPhones before the higher-end model's price was abruptly slashed to apply for a $100 store credit.

(AP) -- Online brokerage TD Ameritrade Holding Corp. said Friday one of its databases was hacked and contact information for its more than 6.3 million customers was stolen. A spokeswoman for the Omaha-based company said more sensitive information in the same database, including Social Security numbers and account numbers, does not appear to have been taken.

(AP) -- On the Mississippi River below the verdant bluffs that mark the far southern Minnesota-Wisconsin line, the federal government is waging a multi-million dollar campaign against the elements.

(AP) -- In the three decades since 18 bison stumbled onto a federal elk feeding ground outside this mountain town, the herd has ballooned to 1,200 animals - one of the largest groups of bison in the United States.

(AP) -- To help shoppers avoid mislabeled toxic pufferfish and pilots steer clear of birds, federal agencies are starting to tap into an ambitious project that is gathering DNA "barcodes" for the Earth's 1.8 million known species.

(AP) -- Winston Moss was still wearing his pads when he went in for the CT scan. The Seattle Seahawks linebacker suffered a neck fracture during a road game in Baltimore in 1997, and the Ravens medical staff's emergency protocol ensured that that he quickly received the proper treatment.

(AP) -- A Chinese court ordered Sohu.com to compensate a script writer for lost income after the Web site sold romantic mobile phone messages he wrote without paying him, the writer and his lawyer said Friday.

(AP) -- The vaunted "$100 laptop" that Massachusetts Institute of Technology researchers dreamed up for international schoolchildren is becoming a slightly more distant concept.

A game of billiards may never get smaller than this. Physicists at UC Riverside have demonstrated that graphene - a one-atom thick sheet of carbon atoms arranged in hexagonal rings - can act as an atomic-scale billiard table, with electric charges acting as billiard balls.

German anti-monopoly authorities on Friday approved plans by mobile phone operators T-Mobile, O2 and Vodafone to create a joint technical platform to bring television to mobile phones.

Daihatsu Motor Co., a unit of the Japanese auto giant Toyota Motor, said Friday it has developed a new fuel cell technology that eliminates the need for platinum.

Through some of the very first scientific observations with the brand-new Large Binocular Telescope (LBT) in Arizona, an international team of astronomers has found that a recently discovered tiny companion galaxy to our Milky Way, named the Hercules Dwarf Galaxy, has truly exceptional properties: while basically all of its known peers in the realm of these tiny dwarf galaxies are rather round,...

Visible and ultraviolet laser light has been used for years to cool trapped atoms—and more recently larger objects—by reducing the extent of their thermal motion. Now, applying a different form of radiation for a similar purpose, physicists at the National Institute of Standards and Technology have used radio waves to dampen the motion of a miniature mechanical oscillator containing more than a...

Researchers at the University of Texas Medical Branch at Galveston are trying to determine whether a drug already available to heart patients can also be used to delay delivery in expectant mothers with severe preeclampsia. If so, this groundbreaking study would give hope to hundreds of thousands of women who experience this life-threatening disorder each year.