On Sept. 11, scores of men with automatic weapons and RPGs launched a night assault on the U.S. compound in Benghazi

The Department of Homeland Security is advancing its plan to use surveillance drones for “public safety” applications

Sixteen years after a group of mysterious lights were spotted by thousands throughout the Valley, theories still swirl about what was overhead.

For two months now, politicians in Washington have argued furiously over who is to blame for the attack against the U.S. diplomatic compound in Benghazi

The archipelago off the coast of Venezuela, where fashion designer Vittorio Missoni's plane disappeared mid-air, has a growing reputation for mysterious vanishings

Russian Deputy Prime Minister Dmitry Rogozin Saturday proposed establishing a common defense system to counter space threats

Buried channels, believed to have been caused by flooding, have been discovered below the surface of Mars

Astronomers have found a planet whose skies are illuminated by four different suns - the first known of its type.

A robotic ocean explorer has found the first Antarctic whale fall marine scientists have ever studied — and discovered nine new deep-sea species

“My administration,” President Obama wrote on his first day in office, “is committed to creating an unprecedented level of openness in government.”

The Benghazi-Syria Connection

The Pentagon says that the U.S. military was ready within a few hours of the terrorist attacks on U.S. outposts in eastern Libya to respond to numerous possibilities, including hostages.

Scientists may never know exactly how the moon and Earth were formed some 4.5 billion years ago, but...

A close encounter of the rocky kind is set for Feb. 15, when an office-building-size asteroid will speed past Earth fcloser than some communications satellites.