Researchers are reporting development of the world's thinnest balloon, made of a single layer of graphite just one atom thick. This so-called graphene sealed microchamber is impermeable to even the tiniest airborne molecules, including helium. It has a range of applications in sensors, filters, and imaging of materials at the atomic...

Sexual harassment from male guppies is so bad that long-suffering females will risk their lives to escape it, according to new research.

A declining number of office-based psychiatrists appear to be providing psychotherapy to their patients, according to a new report. Psychotherapy has been part of the practice of psychiatry for generations. Various forms of psychotherapy, either alone or in combination with medications, are recommended for the treatment of major depression, post-traumatic stress disorder, bipolar disorder and...

Most stroke patients can't recall when their symptoms started or do not arrive at the hospital in a timely manner, so they cannot be considered for time-dependent therapies such as the clot-busting drug tissue plasminogen activator (tPA), researchers reported in Stroke: Journal of the American Heart...

Approximately half of all new HIV infections in the United States result from the sexual risk behaviors of men who have sex with men. Now, a new study provides additional insight into which of these men are most likely to transmit HIV to others, potentially paving the way for the development of more targeted prevention...

In a game of give and get, the brains of people with borderline personality disorder often don't get it. In fact, an interactive economic game played between two people in functional magnetic resonance imaging devices revealed a brain malfunction associated with the disorder, a serious but common mental illness that affects a person's perceptions of the world and other people, according to an...

People with Crohn's disease are seven-fold more likely to have in their gut tissues the bacterium that causes a digestive-tract disease in cattle called Johne's disease. The role this bacterium may or may not play in causing CD is a top research priority, according to a new report released by the American Academy of...

Scientists in the UK have discovered a new type of antibiotic in maggot secretions that can tackle up to 12 different strains of MRSA, as well as E. coli and C. difficile.

Thought experiment: a carbon dioxide molecule—think of a cheerleader’s baton—comes slanting in at high speed over a dense liquid, strikes the surface and ricochets. How does it tumble? Fast or slow? Forward, backward or sideways? New experiments are giving a uniquely detailed look at what happens when gas molecule meets...

A recent study demonstrates that including flossing as part of one's routine oral care can actually help reduce the amount of gum disease-causing bacteria found in the mouth, therefore contributing to healthy teeth and gums.

A new chemical probe can rapidly detect ricin, a deadly poison with no known antidote that is feared to be a potential weapon for terrorists and cannot quickly be identified with currently available tests. Chemists at UC San Diego developed the probe, which glows when bound to a ricin-damaged part of the body's protein-making machinery. Because the test pinpoints the specific injury underlying the...

AP - Hurricane Hernan weakened to Category 1 strength in the eastern Pacific on Sunday as it lumbered over cooler waters far from land, the U.S. National Hurricane Center in Miami...

AP - Scientists say they are a step closer to developing materials that could render people and objects invisible.

Scientists in the US say they have developed materials that can bend light around 3D objects making them "disappear".

How the Met Office plays a stormer in keeping people well

The 70-foot (21-meter) sailer is the biggest and "best preserved" vessel of its kind ever found, archaeologists say....

A tropical storm floods a Vietnamese village; a blaze scorches a Spanish forest, and more in our new weekly roundup of nature news photos....

The chilis develop piquant chemicals to frustrate the harmful fungus long enough for birds and other animals to disperse the peppers' seeds, a new study finds....

A new color-coded map represents the first visual evidence of the mysterious force that astronomers think is causing the expansion of the universe to speed up....

A spike in jellyfish numbers along Atlantic and Mediterranean coasts highlights scientists' lack of understanding of these stinging creatures....

But don't blame Wile E. Coyote. Gravity and erosion are the culprits behind the destruction of once picturesque Wall Arch....

China has banned dog meat from being served in designated Olympic restaurants, though it is still on the menu elsewhere....

Scientists in Tasmania, Australia, have tagged hundreds of ant-eating Echidnas to better understand their reproductive habits—and the role of the animals' unusual sex organs. Warning: video contains graphic imagery....

British business leaders want brighter teenagers to be "opted in" to taking three separate science subjects.