Cutting Edge

Spur-of-the-moment spacewalk a first for NASA, space station

Saturday saw a first for NASA and the International Space Station, as two astronauts conducted an impromptu spacewalk to try to locate the source of a problem on the craft's exterior.

The space agency hadn't yet ordered such a spur-of-the-moment maneuver in regard to the ISS, according to the Associated Press, but when crewmembers on the craft spotted ammonia flakes floating through space beyond a window Thursday, the spacewalk was hastily planned.

After Mission Control and the ISS crewmembers prepped intensely -- for less than 48 hours -- astronauts Thomas Marshburn and Christopher Cassidy exited a hatch and … Read more

Your very own drone, to follow you home

Imagine carving your way down a particularly challenging slope, your skis kicking up clouds of snow, trees flying by, your death-defying stunts captured perfectly on camera. And you're all by yourself.

How would you pull off such a feat?

Short of those with a film crew on hand, or at least a buddy with a GoPro camera tracking your every move, it's hard to imagine it being possible at all, let alone while you're alone.

But you may not have to imagine it for long.

Next week, a startup called Universal Air will finish shipping out its … Read more

Desktop Othermill carves out circuit boards, jewelry

What if you could easily add custom-designed circuits to DIY projects like 3D-printed stuff? Here's a small mill that can churn them out with precision and power.

Othermill is a Kickstarter project that has quickly exceeded its fundraising goal. It's designed to be a portable, desktop three-axis mill that can produce printed circuit boards, jewelry, molds, and other objects.

Conceived by the wizards at San Francisco-based R&D shop Otherfab/Otherlab, known for its crazy inflatable robots, Othermill works with CAD software to cut material in three dimensions. Unlike 3D printing, it cuts material away instead of adding it. … Read more

The Pirate Bay now offering banned 3D-printed gun files

For those who worry that even 24 hours without the ability to download 3D-printed gun blueprints is too much, fret no more: The Pirate Bay is on the case.

On Thursday, the U.S. State Department successfully demanded the removal of a set of 3D-printed firearm files from Defcad, a file-sharing site run by Defense Distributed, the group at the center of the 3D-printed gun controversy.

The founder of Defense Distributed, Cody Wilson, told CNET on Thursday that he had been expecting the State Department's action, though he felt that the International Traffic in Arms Regulations permitted Defcad to … Read more

International Space Station springs system coolant leak

The International Space Station is leaking ammonia coolant used to prevent the station's power systems from overheating, but it doesn't pose a danger to the crew, NASA announced Thursday.

Crew aboard the space station alerted Mission Control to the appearance of small white flakes floating away from the station's P6 truss solar array this morning, NASA said in a statement. The ammonia loop affected is the same loop at which spacewalking astronauts attempted to troubleshoot a leak last November, NASA reported.

"There's a very steady stream of flakes or bits coming out as the truss … Read more

U.S. State Department latest to crack down on 3D-printed guns

The latest governmental attack on 3D printed guns came from the U.S. State Department on Thursday.

In a letter sent to Defense Distributed, a nonprofit advocating for the creation of 3D printed firearms, the State Department demanded the removal from a public Web site of a set of 3D files used to print gun components. The State Department said that the online dissemination of the files could violate restrictions on exporting guns covered by International Traffic in Arms Regulations (ITAR)

Defense Distributed founder Cody Wilson said he obeyed the federal directive. It followed the announcement yesterday by California state … Read more

Why fear of 3D-printed guns is overblown

Despite politicians lining up to regulate 3D printed guns, and a new directive from the U.S. State Department arguing that disseminating 3D files for such weapons may violate weapons export rules, some think that it may all be much ado about nothing.

On Thursday, Forbes reported, the State Department demanded that Defense Distributed, a nonprofit dedicated to creating 3D printed guns, take down a set of files that theoretically enable anyone to print their own firearm.

"The government says it wants to review the files for compliance with arms export control laws known as the International Traffic in … Read more

Landsat watches over the Earth, documenting 28 years of change

NASA's Landsat 5, which recently set a Guinness World Record for the "Longest Operating Earth Observation Satellite," has been delivering high-quality, global data of Earth's land surface for 28 years and 10 months.

Using the annual Landsat satellite imagery captured since 1984, Google has created dramatic composites, alongside other Google Earth satellite imagery, depicting our changing world, the death and growth of natural lands, and humans' impact on the landscape.

The animated GIFs shown here chronicle the development and destruction of life on Earth, pulsing like a living being, with forests receding, water evaporating, and cities … Read more

3D holograms show if baby's smiling in the womb

Remember back in the olden days, when you had to wait till your baby came out of the womb to start determining whose nose and chin it had?

Pioneer, maker of speakers, receivers, and headphones, is moving into the in-utero-baby-picture realm with 3D holograms that give a remarkably detailed look at an infant's early visage.

The company does that using a full-color hologram printer. The device, which fits into a briefcase, can record a full color card-size hologram in 120 minutes, and a single-color hologram in 90 minutes. … Read more