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Researchers at the University of Tokyo's Ishikawa Oku Lab have been hard at work on a camera system that can track fast moving objects incredibly well, and the technology may change the way sports like baseball and soccer are televised. Recently, the team building the system has entered the next phase of testing: taking it outside, to see if will perform as well as it has in a lab setting. If all goes according to plan, they expect it'll be ready for broadcast use in roughly two years.

Demos of the tech are pretty impressive, as you can see in the video below showing the (warning: not recommended watching for those easily prone to motion sickness). To get the ping-pong ball-centric shots, the system uses a group of lenses and two small mirrors that pan, tilt and move so the camera itself doesn't have to. The mirrors rely on a speedy image tracking system that follows movement, rather than predicting it. Swapping the camera out for a projector also has some interesting applications -- it can paint digital pictures on whatever its tracking. Sounds like the perfect gadget for folks who wish their table tennis balls looked like emoji.

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NASA picks eight new astronauts that may go to asteroids and Mars

If you like space exploration, you'll want to get used to these eight faces -- odds are that you'll see at least some of them again. They represent NASA's 2013 astronaut candidate class, and they'll start training in August for a chance at going on missions to the International Space Station, asteroids and even Mars. The trainee pool is more eclectic than usual this time around. Half the picks are women, while three of the candidates come from non-military outfits such as Harvard Medical School and NOAA. Check out the full roster after the break.

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RoboRoach surgery kit comes to Kickstarter: a DIY remote control for real cockroaches

What DARPA does with animal test subjects behind closed doors is one thing, but here we have something else entirely: mad-scientist kits that allow anyone at home to control the movement of a real-life cockroach. Backyard Brains, the crew behind Twitter Roach, have been selling RoboRoach sets for creating cyborg insects for some time. But today, after getting as far as they can on their own, they're seeking Kickstarter funding to improve their design and develop "educational materials" to go with it. The project will go live in the next 30 minutes or so, and pledges of $100 or more will get you a surgery kit consisting of a PCB "backpack," battery and three sets of electrodes. The PCB pairs with mobile devices via the Bluetooth LE profile and a companion app delivers commands to the 'roach, allowing you to steer the creature by swiping across your screen. Cough up $150 or more and they'll send you a dozen 'roaches to get you started.

The electrodes we mention need to be implanted into the cockroach's antennae so directional triggers can be sent to the nerves within -- effectively fooling the creature into thinking it's hit an obstacle and needs to change course. This is where it starts to get uncomfortable. Backyard Brains are touting the RoboRoach as an educational tool, specifically stating that "this product is not a toy." Something that's glossed over on the Kickstarter page, however, is the allegedly painless surgery step: how you attach the electrodes to the insect. People can make their own minds up regarding the ethics of the campaign, and can start by heading to the Kickstarter source link once it goes live at 9am ET. We've also embedded an old tutorial video below we found on the company's site, which demonstrates the surgery process. Be warned: there's antenna-clipping and other mutilations involved, which make our skin crawl even more than the thought of handling the cockroaches in the first place.

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Alt-week takes a look at the best science and alternative tech stories from the last seven days.

Altweek 6813 the Tetris printer, microvacuums and naked Antarctica

Printing can take many forms these days, it seems. It's a term we see pulled in another direction this week, but one we think you'll enjoy. Want something a little more tangible? How about advanced Antarctic topology, or gas-detecting microscale vacuum pumps? Yep, this is alt-week.

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DNP NASA creates surveys of our two nearest galaxies using ultraviolet light video

NASA is determined to bring the final frontier closer than ever -- or at least a small, photographic slice of it. Using NASA's Swift satellite, astrophysicists at Goddard Space Flight Center and Pennsylvania State University were able to create a stunningly detailed survey of the two galaxies closest to us: the Small and Large Magellanic Clouds. The 160-megapixel image was painstakingly stitched together using thousands of smaller photographs captured with Swift's Ultraviolet/Optical Telescope. Rendering the galaxies in UV wavelengths allows researchers to study details unseen in visible light images, like individual stars surrounding the Tarantula Nebula in the LMC (the large pink cluster in the photo above). This high-res mosaic provides ample opportunity to study the life cycles of stars, from birth to death, in detail astrophysicists could previously only dream about. Fancy a tour? Check out the video after the break -- or journey on past the source link to download the 457MB TIFF.

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Alt-week takes a look at the best science and alternative tech stories from the last seven days.

Altweek 6113 cloning a mammoth, psychic robots and making music with your mind

We've not had a week quite as exciting as this in... well, weeks! Not only has a team of paleontologists discovered mammoth remains with liquid blood, there's good news for future generations who'd rather put their feet up (while hiding from mammoths, we assume). This is alt-week.

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DARPA developing prosthetic limbs controlled by muscles and can feel

DARPA's no stranger to bionic limb research, however two new projects under the agency's RE-NET program focus on improving amputees' link to their prosthetics. RE-NET aims to develop the technology that will connect artificial limbs to existing nerves and muscles. Once that's achieved, users will be able feel with the prosthetic as well as move it as they would a real arm or leg, unlike another project focused on one-way control. Head past the break to watch videos documenting the clinical trials of both studies -- the arms in the clips aren't quite the life-like limbs DARPA promised back in 2006, but they sure are mighty impressive.

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iPhone biosensor cradle brings us one step closer to having tricorders video

It seems like every day we're getting a little bit closer to having tricorders, and today's no exception. Researchers at the University of Illinois at Urbana-Champaign have designed hardware and software that turns the iPhone into a powerful biosensor that's useful for toxin and pathogen testing as well as medical diagnosis. The package consists of a cradle that contains an assortment of lenses and filters which line up with the handset's camera, along with an app that guides the user through the testing process. At the core of the device is a photonic crystal slide which basically turns the iPhone into a high-resolution spectrometer. While the cradle only contains about $200 worth of parts, it's just as accurate as laboratory equipment costing tens of thousands of dollars, with the added bonus of being hand-held. The team just received an NSF grant to explore other applications for the device and is working on a cradle for Android phones. Hit the break for a demo video and a peek into the future.

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DNP NASA awards grant for 3D food printer

Last week we had lab-grown burgers; this week it's powdered pizza. NASA's gotten in on the synthesized food action by awarding a $125,000 grant to Anjan Contractor, head of Systems & Materials Research Corporation, to develop a 3D food printer. The first device Contractor plans to build under the six-month grant is based on RepRap's open-source hardware and will be designed to print a pizza comprised of three layers of nutritional powders mixed with water and oil. As the final frontier gets further and further away, NASA's need for a nutritious, long-lasting food supply suitable for space travel grows. Since the powders used in Contractor's design -- potentially sourced from insects, grass and algae -- have a shelf life of about 30 years, his 3D food printer would be well-suited to the task. If your appetite's survived the idea of snacks made from pulverized insects, you can watch the grant-winning prototype print some synthesized chocolate after the break.

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Liberator gun made with consumer 3D printer, plastic pistol fires nine shots successfully video

Defense Distributed's plan is to put the power of guns in the hands of every person with access to the internet and a 3D printer. Until now, however, we'd only seen the Liberator pistol built using an expensive industrial-grade printer -- despite the fact that the blueprints for gun have been downloaded by thousands of people who don't have access to such a high-end machine. One of those folks decided to put the Liberator in the hands of the printing proletariat by making it with a consumer-level Lulzbot A0-101 3D printer, a nail and some common screws.

This new version, called the Lulz Liberator, differs from the original in that it's got a rifled barrel and uses metal hardware to hold it together (as opposed to printed plastic pins). Printing it took around two days and used about $25 worth of generic ABS material, and the pistol produced was fired successfully nine times, but its creator claims it could've shot more. It's still a far cry from a Glock or Beretta, of course, as the gun misfired several times, and removing spent shell casings required the use of a hammer. So, it's not quite ready for prime time, but it's one more bit of proof that the age of printed pistols is officially upon us.

[Image Credit: Michael Guslick]

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University of Glasgow creates 3D with singlepixel sensors, skips the cameras video

Most approaches to capturing 3D models of real-world objects involve multiple cameras that are rarely cheap, and are sometimes tricky to calibrate. The University of Glasgow has developed a method that ditches those cameras altogether. Its system has four single-pixel sensors stitching together a 3D image based on the reflected intensity of light patterns cast by a projector. Reducing the pixel count lowers the cost per sensor to just a few dollars, and extends the sensitivity as far as terahertz wavelengths. Real-world products are still a long way off, but the university sees its invention as useful for cancer detection and other noble pursuits. Us? We'd probably just waste it on creating uncanny facsimiles of ourselves.

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Google AirShow streams IO live from several RC blimps

Yes, there's a fleet of camera-equipped, remote-controlled blimps live-streaming a bird's-eye view of Google I/O on YouTube, right now. It's called Google AirShow and it's taken over the airspace within Moscone Center. We briefly chatted with Chris Miller, a software engineer with AKQA (the company that put the dirigibles together for Google), about the technology used in each aircraft. It all begins with an off-the-shelf model airship that's flown manually via standard a 2.4GHz radio. Each blimp is outfitted with a servo-controlled USB camera and 5GHz USB WiFi dongle which are both connected to a Raspberry Pi board running Debian, VLC and Python. A custom-designed Li-polymer battery system powers the on-board electronics. The webcam encodes video as motion-JPEG (720p, 30fps) and VLC generates a YouTube-compatible RTSP stream that's broadcast over WiFi. Python's used to pan the servo-controlled camera via the Raspberry Pi's PWM output. The result is pretty awesome. But don't just take our word for it -- check out the gallery and source link below, then watch our hands-on video after the break.

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The Smithsonian is 3D-scanning its collection for future generations

The Smithsonian has been experimenting with 3D scanning for some time now, using tools like laser arm scanners to map models of whale fossils and other ancient artifacts. Now the museum is utilizing the technology to preserve its collection for posterity. Its "laser cowboys" Vince Rossi and Adam Metallo are working full-time to record items for future generations, as part of an extensive effort to digitize 14 million prioritized objects (a list that also includes artwork and lab specimen). After the break, check out a video of the team working to preserve a digital copy of the Philadelphia gunboat, America's oldest fighting vessel.

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