An existing medicine has prevented dangerous artery clots in laboratory experiments without significantly increasing bleeding time in mice. The finding offers a possible route toward clot prevention ...

A computer scientist has found a way to estimate distances across huge networks more reliably without increasing the method’s overall mathematical running time. The advance extends a useful accuracy ...

Cannabis use was linked to a greater likelihood of reporting a past stroke in a study of more than 440,000 US adults. The link appeared in both occasional and frequent users, rather than rising ...

An electron microscope can reveal the structure of battery materials in extraordinary detail. It can also move the very atoms a researcher wants to study. A new investigation found that the microscope ...

Voyager 1 is talking to Earth again after two days of silence. The signal returned on its own on October 20, weeks after NASA completed a separate operation to save electricity and keep the probe’s ...

A small group of brain cells helps prevent blood pressure from swinging too widely as the body moves between sleep, wakefulness and activity. Scientists found that removing these cells disrupted that ...

Gut bacteria can turn to proteins in the body’s protective intestinal mucus when dietary fibre is scarce. Researchers found that changing their food supply can shift the chemical products the microbes ...

A familiar medicine that relaxes blood vessels has been tested as a possible way to improve blood supply to the brain. The trial did not find a clear overall benefit, but it offers useful clues for ...