Space

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

It's hard not to get freakishly excited when science fiction becomes scientific fact -- especially when the origins of that science are rooted in Star Wars.

Think back, young Jedis, to the scene where a fresh-off-Tatooine Luke Skywalker is honing his light saber skills under the tutelage of Obi-Wan Kenobi. A round, floating robot called a remote helps Luke practice his Force-finding mojo. Now, NASA is running experiments with miniature satellites, or nanosatellites, that were inspired by that fictional robot.

Roughly the size of a soccer ball, these robots that fly freely in space are called Spheres (which is … Read more

A stunning 4-gigapixel panorama of Mars, compiled from images captured by two mast cameras aboard NASA's Mars Science Laboratory Curiosity rover, could be one of the most detailed views of our distant neighbor yet.

The panoramic picture of Gale Crater derives from 295 images that were digitally stitched together by Estonian photographer Andrew Bodrov. In its final form, the mosaic stretches out to an astounding 90,000 by 45,000-pixel resolution. … 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

You could call them drones, or satellites -- NASA prefers the latter -- but these small flying robots that are being used on the International Space Station are powered by Nexus S smartphones.

Ars Technica has a lengthy writeup on how the space agency hacked smartphones to power its SPHERE (Synchronized Position Hold, Engage, Reorient, Experimental Satellites) satellites after their original CPUs had become too slow for their needs. Modern handsets made sense since they have integrated cameras, sensors, Wi-Fi connectivity, and of course, a capable processor. … 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

A year after discovering rockets from the Apollo 11 moon mission on the bottom of the Atlantic Ocean, Bezos Expeditions has recovered "many prime pieces" of the engines, Jeff Bezos blogged today.

Amazon's billionaire founder and chief executive wrote that the crew of the ship Seabed Worker spent three weeks at sea, working almost three miles below the surface to pull up the various piece of the engines.

"We've seen an underwater wonderland -- an incredible sculpture garden of twisted F-1 engines that tells the story of a fiery and violent end, one that serves … Read more

Voyager 1 truly has gone where no man (or spacecraft) has gone before. Huge changes in the environment around the space probe indicate that it has gone beyond the heliosphere, our little corner of space that's dominated by the influence of the sun.

It only took 35 years for the craft to travel more than 11 billion miles from the sun and possibly exit the solar system. What scientists are seeing is a huge spike in galactic cosmic rays.

"Within just a few days, the heliospheric intensity of trapped radiation decreased, and the cosmic ray intensity went up as you would expect if it exited the heliosphere," said Bill Webber, professor emeritus of astronomy at New Mexico State University in Las Cruces.… Read more