space

For those of you who hate brushing your teeth under normal circumstances, think about how much harder it is to clean those pearly whites in space, with zero gravity and no sink to get water from or spit into afterwards.

In another in his series of entertaining how-to videos from space, International Space Station Commander Chris Hadfield shows how to take care of those chompers in space. Does the toothpaste go up your nose? How do you get the toothbrush wet in the first place?

Check out the below video in which Hadfield answers those questions and more. And here's a spoiler: he has a unique way of cleaning his toothbrush post usage. … Read more

If you think your workout is reaching a plateau, don't complain to the men and women in space. They have to constantly work out to stave off the loss of muscle tissue.

People living in zero gravity can lose up to 5 percent muscle mass a week. Yikes! That's why working out isn't just something astronauts do because they had a double cheeseburger with onion rings for lunch. Curious about what a space workout looks like? … Read more

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On this week's Crave, we take a first look a gadget that truly blows, an optical game controller that looks like a kazoo. Canadian astronaut Chris Hadfield gives us some more cooking tips from space. And Hotello is a hotel room in a box. Sounds uncomfortable, no? All that and more on this week's episode. … Read more

In an effort to show the potential of the unused frequencies in the broadcast TV spectrum, Google has launched a trial program that will tap the so-called white spaces to provide wireless broadband to schools in South Africa.

The Web giant announced today it will use the unused spectrum to provide Internet access to 10 schools in the Cape Town area. The goal of the trial is to show that wireless broadband can be provided over white spaces -- the unused spectrum that sits between broadcast TV channels -- without interfering with licensed spectrum.

"White space has the advantage … Read more

Canadian astronaut Chris Hadfield has been giving us Earthlings behind-the-scenes peeks into life on the space station. He already showed us how he makes a peanut butter sandwich and how he clips his fingernails without inhaling them.

Now, he turns his attention to the sometimes controversial subject of spinach. Love it or hate it, it's packed with healthy vitamins and minerals. Hadfield posted a video demonstrating how to eat spinach in space.

When you're on the ISS, you can't just pop down to the local space grocery and pick up a nice bag of fresh baby spinach. It first has to be processed into a form that can handle traveling 220 miles from Earth to the International Space Station and not end up flying all over the place in zero gravity once it gets there.… Read more

Apparently the bright object that people reported seeing shooting over the East Coast of the United States last night -- and that left a glittery trail across Twitter -- may well have been a meteor.

Bill Cooke of NASA's Meteoroid Environmental Office told the Associated Press that, "going on visual reports," the flash was "a single meteor event."

"The thing is probably a yard across. We basically have (had) a boulder enter the atmosphere over the northeast," he added.

The object lit up Twitter last night at about 8 p.m. East Coast … Read more

Some 65 million years ago, a big rock -- a very big rock -- slammed into the southwest portion of the Yucatan Peninsula in Mexico, creating a 110- to 180-mile crater and triggering a biological catastrophe that wiped out more than half the Earth's species, including the dinosaurs.

In 2010, an international panel of scientists ruled out alternative explanations as they coalesced around the theory that the space rock impact was responsible for this cataclysmic event. However, they debated whether the crater was produced by a comet or an asteroid.

New research now points to a comet as the … Read more

Retro gaming is big right now. The App Store is filled with games that hearken back to the days of brightly colored pixels, indistinguishable faces and simple but ultimately addictive gameplay. Few games channel this as well or as thoroughly as Space Impact Free. If you were to glance at Space Impact Free in passing, you would immediately think it to be an actual retro game, straight from the Atari 2600 that once sat in every American basement. But the game is an original design and, while it uses many of the same basic elements of its forebears, it has … Read more

At a House Committee hearing today, NASA administrator Charles Bolden Jr. was asked what America would do if a meteor similar to the one that hit in Russia on February 15 was found to be on a path toward New York, with impact three weeks away. His response? "Pray."

At the moment, we might be lucky to get even three weeks' warning. The United States and the rest of the world simply do not have the ability to detect many "small" meteors like the one that exploded over Russia, which has been estimated at roughly 55 … Read more