Worldwide levels of the greenhouse gas that plays the biggest role in global warming have reached their highest in almost 2 million years — an amount never before encountered by humans, U.S. scientists said Friday.

Sky-gazers were treated to an annular solar eclipse in remote areas of Australia on Friday, with the Moon crossing in front of the Sun to leave a “ring of fire” around its silhouette.

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.

Do you dream of living on Mars? Then turn on your webcam. You've got an application video to make.

When Lalo Alcaraz learned this week that Disney was seeking to trademark “Dia de los Muertos,” the name of the traditional Day of the Dead celebrated by millions in Mexico and the U.S., the cartoonist had an idea.

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.