Things didn't go quite according to plan for astronaut Heide Stefanyshyn-Piper during her spacewalk outside the International Space Station on Tuesday.

The iPhone is more than a smart phone for some users -- it's a portable entertainment system. It's also become a gold mine for entrepreneurs like Steve Demeter, developer of the popular puzzle game "Trism," which earned him $250,000 in two months.

Being in space is like being Superman every day, says Clay Anderson, a NASA astronaut from Omaha, Nebraska. But floating around in zero-G can have some serious consequences for the human body, NASA's experts have learned.

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With the new 13-inch MacBook looking and feeling more like the more expensive 15-inch MacBook Pro line than ever, it's harder to tell the difference between the two laptops.

A TV-size probe adorned with a painting of the Indian flag successfully rammed into the moon Friday evening as part of the country's first unmanned lunar mission, Indian space officials said.

As familiar and reassuring as the map of the world is, there is only so much that physical geography can tell us about the state of the planet.

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Space shuttle Endeavour docked Sunday with the international space station, where the shuttle crew will help install more living space.

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NASA said Saturday that the day-old mission of space shuttle Endeavour, which is carrying seven astronauts to the international space station, is going smoothly despite problems with a lost thermal blanket and a malfunctioning antenna.

Riding a brilliant tower of flame into the night sky, the space shuttle Endeavour left Earth on Friday, carrying seven astronauts on a 15-day mission to the international space station.

Using the latest techniques in space technology, astronomers have captured the first-ever pictures of four newly discovered planets orbiting stars outside our solar system.

Maybe you've been tempted. Sitting at the wheel in traffic, you hear the familiar beep of a text-message alert.

A British couple who married in a lavish Second Life wedding ceremony are to divorce after one of them had an alleged "affair" in the online world.

Millions of people in southern California are expected to drop to the ground, huddle under tables, and hold on for about one minute Thursday in what is billed as the largest earthquake drill in history.

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When U.S. Army machine gunner Colby Buzzell began blogging about his combat experiences from a military base in Iraq, he wasn't looking for attention. But in the first major war of the Internet age, his visceral, first-hand accounts became a bracing antidote to bloodless news reports.

If you have a fever, headache and runny nose, you might go to Google and type the words "flu symptoms" to see whether you've come down with influenza.