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Japan's four-inch FITSAT-1 orbiters were released from Japan's Kibo laboratory on the ISS last week to (literally) start their world tour, and astronauts aboard the station captured the wee satellites being dwarfed by giant solar arrays and our own blue rock on their way to orbit. Soon they'll be writing "Hi this is Niwaka Japan" in Morse code using intense flashes of LED light, first to Japan and then across the globe, starting next month. To catch them floating away from the International Space Station's cozy confines, hit the source.

While Felix Baumgartner landed safely on the ground just a matter of hours ago, the internet is still resonating with the sound of tweets, status updates and YouTube clicks, all thanks to what was one of the most spectacular human endeavors in recent history. The mission was simple, to send a man up in a balloon higher than ever before, and have him safely jump to the ground. This kind of "simple" is usually anything but -- if you just look past the well-manicured exterior. Which, as luck would have it is exactly what we did.

With the cheers of success still ringing in his ears, we got some quality time with Art Thompson, the technical project director, and Baumgartner's earliest collaborator on the Stratos mission. We wanted to know a little bit more about what went on behind the scenes, and Thompson was more than happy to oblige. They're understandably proud of what they just achieved.

Cardboard never ceases to amaze. Having been deployed in gramophones, stereos and even digital cameras, one inventor now believes it can be used to make the ideal bicycle. Izhar Gafni, from Israel, spent 18 months just folding the material every-which-way in order to discover a strong enough design, and now he claims his technique is almost ready for mass production. His maintenance-free bike uses a "secret" mix of organic materials to make it waterproof and fireproof, and is then lacquered to give it a friendlier appearance. It's expected to cost a mere $20 and weigh about 20 lbs (9 kg) -- that's 65 percent lighter than an average metal ride. In fact, this bicycle doesn't use any metal parts at all -- the solid tires are made of reconstituted rubber and a car timing belt is used instead of a chain. It lacks the swank of a Faraday Porteur, perhaps, but then you could buy 175 of these for the same money. Want proof that it actually works? The bike's not-so-featherweight inventor takes it for a spin after the break.

[Image credit: Reuters / Baz Ratner]

Talk about building up the tension! Yep, our favorite Austrian daredevil is back out on the New Mexico desert, hoping the weather will hold, and he can finally fall into the record books. Don't forget, you can catch up on Felix Baumgartner's long journey to Roswell in our project overview, but if you're just here for the jump, no problem, as you can watch right here too. Currently conditions are looking like they might just go in Baumgartner's favor, despite some initial concerns about wind levels. But, as we found out earlier in the week, anything can change in an instant. Hold on to your hat (and your breakfast), and hop past the break to watch the events unfold live.

Update: Some spoilers lurk ahead if you didn't get to watch live and wanted to catch the event for yourself, so switch articles if you want to catch replays later on. For everyone else: it's a success! Despite some worries about heat going to the helmet visor that threatened the attempt, Baumgartner has at least unofficially broken records both for the highest-ever manned balloon flight and the all-important altitude record for a jump, either of which respectively occurred just over and just under 128,000 feet. Baumgartner also broke the speed record for freefall, although he was just short of Joe Kittinger's 4-minute, 36-second freefall duration. There's a media event still ahead that should provide more details, but for now we'd just like to welcome Felix back to Earth.

Alt-week peels back the covers on some of the more curious sci-tech stories from the last seven days.

Are you reading this? Seriously, are you? Sure, we know you think you are, but what if you're just a sub-feature of a complex computer program. A sprite, nothing more than the creation of software. The problem with this question is, how would you ever know? You wouldn't, right? Well, not so fast there. Turns out, maybe there is a way to unravel the matrix (if there is one). It'll come as no surprise, that this is one of the topics in this week's collection of alternative stories. Think that's all we got? Not even close. We'll explore the truth behind cloning dinosaurs, as well a rare performance by singing mice -- all before dinner. Or is it really dinner? This is alt-week.

When Google took the wraps off Now we all got a pretty excited about the potential of the preemptive virtual assistant. Kimera Systems wants to build a similar system, but one that will make Mountain View's tool look about as advanced as a Commodore 64. The founder of the company, Mounir Shita, envisions a network of connected devices that use so-called smart software agents to track your friends, suggest food at a restaurant and even find someone to paint your house. That explanation is a bit simplistic, but it gets to the heart of what the Artificial General Intelligence network is theoretically capable of. In this world (as you'll see in the video after the break) you don't check Yelp or text your friend to ask if they're running late. Instead, your phone would recognize that you'd walked into a particular restaurant, analyze the menu and suggest a meal based on your tastes. Meanwhile, your friend has just reached the bus stop, but it's running a little behind. Her phone knows she's supposed to meet you so it sends an alert to let you know of the delay. With some spare time on your hands, your phone would suggest making a new social connection or walking to a nearby store to pick up that book sitting in your wishlist. It's creepy, ambitious and perhaps a bit unsettling that we'd be letting our phones run our lives. Kimera is trying to raise money to build a plug-in for Android and an SDK to start testing its vision. You check out the promotional video after the break and, if you're so inclined, pledge some cash to the cause at the source.

Technologies like NFC, RFID and QR codes are quickly becoming a normal part of everyday life, and now a group from Carnegie Mellon University has a fresh take on close-quarters data it calls acoustic barcodes. It involves physically etching a barcode-like pattern onto almost any surface, so it produces sound when something's dragged across it -- a fingernail, for example. A computer is then fed that sound through a microphone, recognizes the waveform and executes a command based on it. By altering the space between the grooves, it's possible to create endless unique identifiers that are associated with different actions.

It's easy to see how smartphones could take advantage of this -- not that we recommend dragging your new iPhone over ridged surfaces -- but unlike the technologies mentioned earlier, not all potential applications envisage a personal reading device. Dot barcodes around an area, install the sound processing hardware on site, and you've got yourself an interactive space primed for breaking freshly manicured nails. We're pretty impressed by the simplicity of the concept, and the team does a good job of presenting scenarios for implementing it, which you can see in the video below. And, if you'd like to learn a little more about the idea or delve into the full academic paper, the source links await you.

[Thanks, Julia]

Researchers from Microsoft and Cornell University want to remove the tangles of cables from data centers. It's no small feat. With thousands of machines that need every bit of bandwidth available WiFi certainly isn't an option. To solve the issue, scientists are turning to two sources: the cutting edge of 60GHz networking and the 19th century mathematical theories of Arthur Cayley. Cayley's 1889 paper, On the Theory of Groups, was used to guide their method for connecting servers in the most efficient and fault tolerant way possible. The findings will be presented in a paper later this month, but it won't be clear how effectively this research can be applied to an actual data center until someone funds a prototype. The proposed Cayley data centers would rely on cylindrical server racks that have transceivers both inside and outside the tubes of machines, allowing them to pass data both among and between racks with (hopefully) minimal interference. Since the new design would do away with traditional network switches and cables, researchers believe they may eventually cost less than current designs and will draw less power. And will do so while still streaming data at 10 gigabits per second -- far faster than WiGig, which also makes use of 60GHz spectrum. To read the paper in its entirety check out the source.

Robots come in many flavors. There's the subservient kind, the virtual representative, the odd one with an artistic bent, and even robo-cattle. But, typically, they all hit the same roadblock: they can only do what they are programmed to do. Of course, there are those that posses some AI smarts, too, but Georgia Tech wants to take this to the next level, and build a 'bot that can interact with its environment on the fly. The project hopes to give machines deployed in disaster situations the ability to find objects in their environment for use as tools, such as placing a chair to reach something high, or building bridges from debris. The idea builds on previous work where robots learned to moved objects out of their way, and developing an algorithm that allows them to identify items, and asses its usefulness as a tool. This would be backed up by some programming, to give the droids a basic understanding of rigid body mechanics, and how to construct motion plans. The Office of Navy Research's interest comes from potential future applications, working side-by-side with military personnel out on missions, which along with iRobot 110, forms the early foundations for the cyber army of our childhood imaginations.

There you were, thinking your NECA-produced Portal gun replica was super neat all on its own. Well, okay -- it is -- but wouldn't it be even cooler if you could use it to make a baby companion cube levitate in mid-air with it? That question is exactly what lead to Hack a Day's creation of just such a device, as seen in the video below the break. By reappropriating a magnetic floating globe's parts and attaching said parts to both the gun and a homemade companion cube, Hack a Day were able to recreate at least part of the magic Chell experiences in her Aperture Science adventures. Of course, if you move the gun too much, the companion cube will fall out. Just think what that does to its psyche! You monster.

[Image credit: Caleb Kraft, Hack a Day]

Google has been taking advantage of its sheer domination of search to act as a custodian for human culture, whether it's famous artwork or wonders of the world. The most direct example of this archival impulse may have arrived today through the launch of historical exhibitions at the (virtual-only) Google Cultural Institute. Starting with 42 exhibitions, the project delves into major historical events with both a guided, mixed-media tour as well as the kind of free-form exploration you'd expect from Google, such as hunting down a specific person, place or time range. The focus helps Google tell both textbook-level history as well as private stories. Though small at present, the collection is taking further submissions that could lead to a much broader internet resource for learning -- an expansion that we can't help but embrace.

Carbon nanotube-based sensors are good at sniffing out all kinds of things, but applying the cylindrical molecules to a substrate has traditionally been a dangerous and unreliable process. Now, researchers at MIT have found a way to avoid the hazardous solvents that are currently used, by compressing commercially available nanotube powders into a pencil lead-shaped material. That allowed them to sketch the material directly onto paper imprinted with gold electrodes (as shown above), then measure the current flowing through the resisting carbon nanotubes -- allowing detection of any gases that stick to the material. It works even if the marks aren't uniform, according to the team, and the tech would open up new avenues to cheaper sensors that would be particularly adroit at detecting rotten fruit or natural gas leaks. For more info, sniff out the video after the break.

The Polaris rover may look a little punk rock, but that mohawk is no fashion statement. It's for catching solar rays which shine almost horizontally at the Moon's north pole, a location Polaris is due to explore before 2016. Built by Astrobotic Technology, it'll be ferried aboard the SpaceX Falcon 9 rocket to our celestial companion, where it'll drill into the surface in search of ice. The company, spun out of the Carnegie Mellon University, hopes to identify resources at a depth of up to four feet that could be used to support manned Moon expeditions in the future. The plan is to complete the mission during a 10-day window of sunlight, digging at up to 100 sites over a three-mile stretch. However, if it can live through the harsh two-week-long nights, then it may continue to operate "indefinitely." NASA is backing the project, providing ice-prospecting gear and money, although Astrobotic hopes to get more cash for its work -- over $20 million from Google's Lunar X Prize. Right now, Polaris is a flight prototype and there are still improvements to be made, mainly on the software side, before it tackles the rough terrain. Check out the short video of its public unveiling below, although we don't think the soundtrack quite matches the hairdo.

The Humble Bundle tends to be associated with not just low prices, but also indie video games (and occasionally music). Today's bundle, however, centers on the literary-minded among us, offering a set of eight e-Books for just under $10. Of course, a main staple of the bundle is its pay what you want price model, which applies here as well -- should you only want six of the books, you can pay any price (one penny for six books! hot dog!). If you want access to John Scalzi's Old Man's War and Signal to Noise by Neil Gaiman and Dave McKean, you've gotta shell out over the average payment price (currently sitting at $9.84). If you want that sub-$10 price, we'd suggest heading over sooner than later. Another good reason? You've only got two weeks before this humble e-Book bundle disappears forever.

Weather may have delayed Felix Baumgartner's record-breaking "space dive" by another (no doubt torturous) 24 hours, but all going well, the wait is almost over. In just over an hour, proceedings will kick off, and you can watch them live, right here. The latest reports indicated that conditions remain favorable, with the team sending a weather balloon up into the stratosphere earlier this morning. The fun begins at 8:30am eastern, but all you need to do is grab a coffee then head past the break for the live feed.

Update: Pre-flight checks have postponed the set off. Earliest launch is now set for 12:30PM 1:30PM ET.

Update 2: Sorry folks, the launch has been called off due to gusty winds. The team said that tomorrow was a possibility, but until the weather gives way, Felix will remain firmly on the ground.

Sure, we can pull space junk out of orbit with lasers or use it to cobble together new satellites, but if engineers at space firm Astrium UK have their way, space trash could be disposed of with the help of harpoons. Currently in a conceptual stage, the system is designed to shoot defunct satellites or other debris with a harpoon mounted on a "chaser satellite" and use a tethered propulsion pack to send the rubbish in an atmospheric descent where it'll burn up. Since the projectile could shoot straight through targets and result in even more garbage, it's been fashioned with a crushable portion to reduce its speed upon impact. There's no concrete word on when the outfit's solution might be put in action, but they'll present their work on Wednesday at the 63rd International Astronautical Congress in Naples (Italy, not Florida, mind you). If you can't wait to see the harpoon at work, head past the break to catch tests of an Earth-based prototype.

One small step in May is poised to turn into one giant leap for space capitalism as NASA approved the Sunday evening launch of SpaceX's Dragon capsule. The scheduled trip comes just a little over four months after the project successfully completed a docking test by the unmanned private spacecraft with the International Space Station. The Sunday flight -- dubbed CRS-1 -- will have the Dragon capsule piggybacking on a Falcon 9 rocket to punch through the atmosphere while carrying more than a thousand pounds of cargo. The capsule will then dock with the station for about three weeks before being sent back to Earth to deliver more than a ton of scientific samples and used hardware from the ISS. The launch is scheduled for 8:35PM ET from Cape Canaveral Air Force Station barring a tantrum from Mother Nature (we've also seen our share of aborted SpaceX Dragon launches before so we're keeping our proverbial fingers crossed). NASA says that Orbital Sciences' competing Cygnus spacecraft and Antares rocket will also make a demo flight later this year.

[Image credit: Jim Grossmann, NASA]

If you thought that year out around Europe was an eye opener, how about 12 months on the International Space Station? That's what's in store for two unnamed astronauts. Currently, the maximum stay on the ISS is six months, but in 2015, one Russian, and one American will work their way through the whole calendar, in a trip that could help pave the way for deep space travel. Plenty of data has already been collected about the effect microgravity has on the body, but less is known of the longer-term implications. NASA is already considering sending manned expeditions to near-Earth asteroids and Mars in the coming decades -- but the results from this excursion could prove invaluable. The names of the chosen two haven't been revealed, and the Soyuz capsule's (currently unaccounted for) third-seat has also sparked talk of another person possibly coming along for the ride. Time to re-plan that gap year?

Alt-week peels back the covers on some of the more curious sci-tech stories from the last seven days.

Normally we try to encourage you to join us around the warm alt-week campfire by teasing you about what diverse and exotic internet nuggets we have for you inside. Sadly, this week that's not the case. There's nothing for you here we're afraid. Not unless you like totally mind-blowing space videos, singing planets and AI / sports commentary-flavored cocktails, that is. Oh, you do? Well what do you know! Come on in... this is alt-week.

A group of engineers from Disney Research have crafted a new method to create interactive objects using 3D printers. Referred to as "printed optics," the lure of this technology is the ability to transform inert 3D models into interactive subjects by embedding 3D printed light piping into an object with minimal electronic components. Illuminated by LEDs and mobile projectors, this new breakthrough in optics has the potential to replace LCD and LED screens to display information on smaller interactive devices. If you find yourself scratching your head trying to visualize such a mojo in action, then check out the video after the break. It will enlighten you.