The International Astronomical Union formally named two small moons of Pluto discovered last year.

"You will believe a man can fly," the old movie posters proclaimed. Well, not quite. But you may be surprised at how rooted in fact the Man of Steel's abilities are.

Related Photos: Animals With "Superman Powers"

When it comes to understanding black holes, gravity only goes so far. A new study says a mighty magnetic wind helps orbiting matter fall into black holes.

Early humans may have spread out of Africa after rapid climate change triggered advances in human thinking and behavior, new research suggests.

A thunderous explosion marked the completion of one of the world's largest dams Tuesday. We mark the occasion with a look at the big numbers—and controversy.

A San Diego, California, company says it has bred low-allergen cats and is now taking orders for the reportedly sneeze-free kitties.

Sensitive enough to detect the letters on a penny, a new film may give androids "feelings" and allow doctors to remotely sense invisible tumors.

Flooded with carbon gas—the basis of life as we know it—a nearby star system may be incubating tar-covered worlds with diamond interiors, scientists speculate.

As potential fathers age, their sperm deteriorates and is less likely to produce healthy babies—or any babies at all, experts find.

"Planemos"—objects too small to be stars but bigger than most planets—are encircled by disks of debris that could spawn tiny orbiting planets.

Modern imaging technology is revealing obscured text within charred sections of Europe's oldest surviving manuscript.

Lime and lemon juice could be potent weapons against AIDS in developing countries, a scientist says. But others argue that the treatment may be ineffective or harmful.

The armies of microbes in your digestive tract are so essential to survival that you're a super-organism, a new study says.

Some 11,400-year-old figs found in Israel may be the fruit of the world's first known form of farming, dating back a thousand years before grains were domesticated.

A Japanese mission to land on an asteroid has revealed startling clues about the structure of the near-Earth objects that share our corner of the solar system.