NASA astronauts performed an emergency spacewalk Saturday to halt an ammonia leak on the International Space Station but it will take weeks or months to determine whether the problem has been permanently fixed.

Using a simple smartphone application to photograph one's meals is a useful slimming aid for the overweight, according to an experiment reported on Sunday.

The act of exploring helps shape the brain and adventuring is what makes each individual different, according to a study out Thursday by researchers in Germany.

YouTube on Thursday unveiled its first paid subscription channels as the Google-owned video service made a long-anticipated move to challenge streaming services like Netflix.

The International Space Station crew Friday were preparing for an emergency spacewalk to fix a “very serious' leak of ammonia from the orbiting laboratory's power system seeping into space.

U.S. scientists have found a way to infect mosquitoes with bacteria in order to break the chain of malaria transmission, according to research published Thursday in a leading scientific journal.

More 11.6-inch and 13.3-inch notebook computers will hit the market this year as big brands change the focus of their notebook marketing efforts, according to a local research institute.

A ground-breaking ceremony was held early this month in Mexico to mark the start of construction on a Taiwan-led astronomical observation project, Taiwan's representative office in Mexico said yesterday.

For those on the go, finding a clean toilet in Singapore and giving feedback on the best and worst commodes is now in hand with a new app for mobile phones and tablet computers.

Landing astronauts safely on Mars is one of the biggest technological hurdles for any future manned mission to the Red Planet, even more complicated than last year's daring rover touchdown.