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PARIS - Divers trained in archaeology discovered a marble bust of an aging Caesar in the Rhone River that France's Culture Ministry said Tuesday could be the oldest known.

TOKYO (AFP) - The world's smallest one-man helicopter will soon take flight in the birthplace of Leonardo da Vinci, who is credited with having first thought of a vertical-flight machine, its developer said.

Peering beneath the ice at the north pole of Mars has now revealed the red planet may be surprisingly colder than was thought.

CAPE CANAVERAL, Fla. - Astronomers have discovered the youngest known supernova in the Milky Way galaxy, still just a baby at 140 years old. The scientists, who announced their findings Wednesday, used a radio observatory in New Mexico and NASA's Chandra X-ray Observatory in space to identify when the supernova, or stellar, explosion occurred. They put the star-dying event at sometime around 1868.

The 7.9-magnitude earthquake that hit China's Sichuan province, leveling buildings and taking tens of thousands of lives, might not have wrought such destruction in the United States, experts say.

GENEVA (Reuters) - Exposure in the womb to common chemicals used to make everything from plastic bottles to pizza box liners may program a person to become obese later in life, U.S. researchers said on Wednesday.

WASHINGTON (Reuters) - Astronomers are baffled after finding an exotic type of star called a pulsar apparently locked in an elongated orbit around a star much like the sun -- an arrangement defying what had been known about such objects.

LONDON - The men were air traffic controllers. Experienced, calm professionals. Nobody was drinking. But they were so worried about losing their jobs that they demanded their names be kept off the official report.

The sun bounces up and down as it roams the Milky Way, and such wavering might have hurled showers of comets Earth's way that caused mass extinctions, including the one that killed the dinosaurs, a new study claims.

VATICAN CITY (Reuters) - The Vatican's chief astronomer says there is no conflict between believing in God and in the possibility of "extraterrestrial brothers" perhaps more evolved than humans.

The universe is twice as bright as it appears, astronomers now suggest.

Physicists have come up with a way to explain how information could escape from a black hole, an idea that's been debated since the 1970s.

MILWAUKEE - It has sent innocent men to death row, given defense attorneys fits and splintered the scientific community.

Potentially toxic computer waste could instead wind up fueling your car one day.

A seal has been caught on camera trying to have sex with a penguin.

NASA is expecting delays for the first tests of the rocket that will replace its aging space shuttles after they retire in 2010, agency officials said Thursday.

TOKYO - A Japanese man who developed the world's smallest helicopter will take flight in the birthplace of Leonardo da Vinci in tribute to the Renaissance genius' original idea.

WASHINGTON (AFP) - Astronomers have discovered the most recent supernova in our Milky Way, hoping it will further knowledge about the spectacular stellar explosions and the workings of our galaxy, a research paper said Wednesday.

What's the definition of "premature ejaculation?" Glad you asked. There's never really been one, until now.

WASHINGTON - The El Nino phenomenon that has puzzled climate scientists in recent decades may have assisted the first trip around the world nearly 500 years ago.

WASHINGTON - While carbon dioxide has been getting lots of publicity in climate change, reactive forms of nitrogen are also building up in the environment, scientists warn.

How teens feel about their popularity is as important as reality, a new study suggests.

Exploring the universe can be as simple as turning on your home computer thanks to a new digital archive filled with views from some of the world's best land- and space-based telescopes.

UTSIRA, Norway (AFP) - How to keep the lights on when all is still and the local windmill won't budge? A small Norwegian island testing a way to store wind-generated energy for calm days may have found the answer.

About 140 years ago, our time, a stellar explosion lit up our galaxy with a blinding flash of light, sending out powerful shock waves to boot. Now, astronomers have spotted the youthful remains from the explosion.