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19 Posts tagged with the aerospace tag
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Rocket tracers, nightime (via NASA)

 

In the military, soldiers sometimes use tracer rounds to help them direct fire onto an opposing target. The tracer projectile uses a pyrotechnic charge that makes the bullet burn brightly and therefore visible to the naked eye. NASA has taken a page from the military’s tracer principal and adapted it to their ATREX (Anomalous Transport Rocket Experiment) program.

 

Five rockets were launched in succession 80 seconds apart to study the Jetstream at high altitude (65 miles up) but keeping an eye on the rockets is difficult to say the least. In order to maintain a better visual lock-on of the sounding rockets (2 X Terrier-Improved Malemutes, 2 X Terrier-Improved Orions and 1 Terrier-Oriole), NASA equipped each with a chemical tracer (unknown as to what chemical) that formed a ‘milky white cloud’ at altitude that enabled researchers to visually see the wind speeds found at that height as well as the rockets trajectory. Two of the five rockets launched carried weather instrumentation (I suspect human subjugation tech as well) that measured temperature, pressure and wind speed to better understand Earth’s upper atmosphere.

 

Tracers or further fodder for the "Chemtrail Conspiracy?"

 

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CleanSpace concept drawing (via EPFL)

 

Space is a messy place. According to NASA, it is littered with over ten million pieces of debris orbiting the Earth at a rate of around 36,000 km/h. That junk is potentially hazardous not only to astronauts but can damage or destroy spacecraft and satellites, as well. To combat this problem engineers from the Swiss Space Center at EPFL (Ecole Polytechnique Federale de Lausanne) have designed a satellite that performs a kind of intergalactic housekeeping. Called ‘CleanSpace One’, the satellite finds its target and latches on with a grappling mechanism. Once the garbage is taken hold of, CleanSpace One then de-orbits the Earth and both it and the garbage are harmlessly burned up in the planet’s atmosphere. To match the speed of the space junk in orbit, CleanSpace One will use a special ultra-compact motor that is being developed in EPFL labs to catch its target that travels anywhere from 28,000 to 36,000 km/h. The costs for developing and deploying CleanSpace One costs about $10,000,000 Swiss Francs and will be tested in the next five years with the retrieval of either the Swisscube picosatellite (launched in 2007) or the Tlsat (launched in 2010).

 

This development comes after a long line of other proposed space debris collection. Anime story line inspires many to clean up the skys. The Russian POD system is like a garbage truck in space. SETI will be used to track debris. NASA wants to use laser to shoot down larger pieces. The space station has to move constantly to avoid large bits flying into its path.

 

A Messy, and scary, place indeed.

 

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Soldier sets up UAV communication system in Afganistan

 

Big bandwidth, 4G, wireless networks are popping up everywhere these days; it is almost hard to find an area that does not have a fast connection. That is not the case for our men and women fighting on foreign battlefields like Afghanistan. Wireless networks out there are hard to come by even at 3G speeds. Wars are won with information. Having soldiers connected is paramount.

 

Slow data speeds will soon be a problem of the past though as DARPA’s (Defense Advanced Research Projects Agency) STO (Strategic Technology Office) looks to bring 4G level connections to even the most remote of battlefields. To do this, DARPA plans on using their Mobile Hotspots program that uses a millimeter-wave communications platform (wavelength of 10 to 1mm.) This system will be implemented in air vehicles as well as ground and will be able to give the war-fighter the speed of a typical 4G fixed tower, which is about a gigabit per second, without the infrastructure (kind of hard to hide a cell-tower in a war zone). The Mobile Hotspots program will also utilize DARPA’s ‘Fixed Wireless at a Distance program' which is essentially a high-performance cell tower that’s placed in a protected area like a forward operating base (FOB). This work is being looked at to boost UAV transmission power in hopes to extend the range.

 

DARPA Program manager Dick Ridgway explained how they will get up and running, "Mobile Hotspots will require the development of steerable antennas, efficient millimeter-wave power amplifiers, and dynamic networking to establish and maintain the mobile data backhaul network. We anticipate using commercial radio protocols, such as WiFi, WiMax or LTE [Long Term Evolution], as a cost-effective demonstration of the high-capacity backbone.  However, the millimeter-wave mobile backbone developed during this program will be compatible with other military radios and protocols.”


 

"The principle of strategy is having one thing, to know ten thousand things." - Miyamoto Musashi (Book of Five Rings)

 

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ViaSat promotional image of the SurfBeam 2 Pro Portable Terminal for newcasting (via ViaSat)

 

I could have used this at CES. ViaSat is to bring mobile satellite broadband at 12 Mbps in the near future with their SurfBeam 2 Pro Portable system. The system can be setup anywhere within minutes. The whole dish fits inside a carrying case about the size of a suitcase and can be fastened together using only your hands to tighten the connections.

 

 

Once assembled, you will be assisted by a GPS system to help locate your position and align the dish correctly. It is as easy as setting the correct elevation, given by GPS, and then panning left or right to find the area with the strongest signal. Once set you are equipped with four port Ethernet router bringing internet at broadband speeds wherever you would like in North America. Additionally, an optional battery pack is available providing up to 4 hours of use to keep from draining your laptop battery.

 

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SurfBeam 2 Pro Portable system (via video demo)

 

Earlier versions of this technology provided up to 350-500kbps of data transfer, where as the SurfBeam provides up to 12Mbps(Megabits per second) download and 3Mbps of upload. It works by transferring data to the ViaSat1, a satellite designed for higher data transfer speeds in geostationary orbit around the Earth.

 

 

The technology does not fail to impress with its handling of HD video and a Skype conversation. How the system overcomes the physical distance between the transceiver and the satellite to provide a lag free experience, was not covered. It will be selling for around $20,000 which is above the price range for everyday people. Their focus is towards newscasters, the military, and other emergency organizations who may need to transmit data, news, and videos in remote locations. At first look, the price may seem rather high. Compared to the cost of a satellite truck, which are between $400,000 to millions, it looks like a sure fire win.

 

 

A similar, stationary, Sunbeam 2 for residential customers is already available. However, the system is  tied down with tiered data plans and a monthly data cap.

 

The following is a video demonstration:

 

 

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(Left) U.S. Military predator drone (Right) Civilian drone filming the riots in Poland over the ACTA signing

 

UAVs have been all over the news in recent months, with the recent acquisition of military grade surplus for both federal and law enforcement agencies. For them, it is legal to fly those in most major cities. For civilians, it’s a different story, as a California based realty company found out when the FAA (Federal Aviation Administration) scolded them for using UAV’s to make promo videos for potential customers. Even hobbyists in the model airplane realm have had it rough. Federal rules dictate they can only fly them in designated areas and with a predetermined height.

 

However, this might change as the United States Senate has introduced legislature that would require the FAA to revise its rules concerning private UAVs. Included in this legislation are altitude revisions for drones that weigh up 55 pounds, that is meant to avoid collisions with commercial aircraft. That situation happens more frequently than you might think. August 2011 saw a collision of a Shadow drone and a C-130 over Afghanistan.

 

Airline pilots are voicing their concern with the revision as they have to achieve a certain amount of flight hours while drone pilots do not. They feel that UAV pilots should have to meet the same standards as human controlled aircraft. There is also the concern of crashing into residential areas as it is not uncommon for UAVs to suffer catastrophic malfunctions and plummet to the earth. Rules and at least a few test sites are already in place with full implementation of regulations coming in three years. Let the spying begin!

 

Read more about the FAA rulings after this link.

 

Also, get in on the UAV scene with DARPA's open UAVforge competition.

 

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UAV’s are everywhere these days. It seems I can’t even walk out of my house without running into a quad-rotor of some sort. Even local law enforcement agencies are getting into the act with their recent acquisition of military surplus.

 

For those of you who love them, Darpa (Defense Research Products Agency) has teamed up with SSC Atlantic (Space and Naval Warfare Systems Center) to give us average ‘Joes’ the opportunity to design the next generation of Unmanned Ariel Vehicles. Called "UAVForge," (started at the end of 2011) contest is heating up in competition with both the crazy and conventional designs. The collaboration uses ‘crowd-sourcing’ as well as a virtual environment and a fictional scenario that participants use to design their UAV’s. You can design by yourself, with a team or you may join an existing team but the contest states that participants have until Feb. 23 2012 to do so.

 

The contest consists of 6 ‘milestones’ each group or person must go through before the winner is chosen.

● Milestone 1: Contestants create a concept video to show of the design to which it’s then voted on to which the winners proceed to the next level.

● Milestone 2: Proof of flight. It has to be able to fly. The winners of this stage advance to the next round of competition.

● Milestone 3: This is where things get riveting as contestants compete with a live video demonstration.

● Milestone 4: This is the competition ‘fly-off’ where contestants compete for the prize of $100,000 US and have an opportunity to pilot the vehicle in an operational exercise.

● Milestone 5: Winners are transported all expenses paid to an operational field scenario.

● Milestone 6: The winner is awarded a contract to produce 15 operational vehicles.

 

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Concept UAV from the competition (via DARPA)


The video’s for these UAV designs give two impressions to the viewer, ‘I can’t believe that flies’ to the ingenious. Standings for milestone 2 were based off of 385 individuals casting 1511 votes along with 255 comments making GremLion, an electrical and computer engineering team from the University of Singapore coming in at number 1 out of ten so far for this round. Their design looks like a hovering shop-vac with a helicopter rotor positioned vertically in the center of it. As crazy as that sounds, the design is incredibly stable and also features ground-tracking as well as obstacle avoidance capabilities. You can see all the entry videos along with all the contest rules and regulations at the UAVForge website found here: http://www.uavforge.net/

 

Whether you join in on the fray or not, this is one competition to follow.

 

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GRAIL probes render. (via NASA)

 

According to the North American Aerospace Defense Command, there are over 9800+ man-made objects orbiting the Earth. As many now know, this is becoming an issue. Our reach does not stop at our geosynchronous orbits, the Earth's moon now has two satellites.

 

NASA launched two satellites that, as of December 31, 2011 and January 1, 2012, have taken their positions around the moon. The "GRAIL probes" launched back in September of 2011 for the dubious sole-goal of mapping the moon's gravitational field. The mission principal scientist, MIT's Maria Zuber, said the purpose best, "We don't actually know why the near side and far side are different."

 

Circling the moon at 55 km above its average surface, the GRAIL probes will use microwave signals to measure the distance between themselves that changes based on the gravitational differences on the surface of the planet.  Accuracy will be within a width of a human-hair. According to NASA, the maps will be "100 times" better than previous recorded near side gravity maps, and "1000 times" for the far side. Zuber again, "When we can improve by a factor of two, we can learn a lot, and improving by a factor of 1000 is transformative."

 

Currently the probes are collecting "better than expected" energy via their solar panels. Zuber stated that the team believes that the GRAIL satellites should be able to store enough energy to stay functional during the pending lunar eclipse in June of 2012. At which time the team will lower the probes to 25 km above the surface a perform a "treetop-skimming" study of the structures of craters. External mapping and internal structure are

 

Another purpose of the mission is to prove, or dis-prove, the University of California's claim that the Earth had two moons at one time. Where the current moon collided with its smaller, 1300 km diameter, sibling at low speeds. Where, instead of forming a typical crater, the strike merged the two. The far side is more mountainous that the front, and they aim to get to the bottom of the mystery.

 

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1

(Dec 2011)

 

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(Right) SLV lauch stages (Left) Switchblade UAV


In a project started in 2007, AreoVironment developed a submarine launching UAV for the U.S. Navy via Raytheon. (A typical circuitous project development path.) A submerged launch vehicle (SLV) is jettisoned from the waste port of a sub. From there, it descends to a safe distance where it sheds weight and inflates a "float collar."

 

The float collar is "pulsed" to control its travel to the surface. As it reaches the top, a water-drogue is deployed to slow its accent more and provide stabilization, while a wind vane then extends to alight the eject port properly. At 35 degrees the folded wing UAV, dubbed Switchblade, is launched.

 

The fully scalable, fully expendable, Switchblade is packed with the state of the art in surveillance. The Beyond-line-of-sight (BLOS) system (via satellite) allows the UAV to  gather reconnaissance to and from anywhere. Direct control or autonomous flight can take it to the target. Real time GPS can relay coordinates. An onboard video camera can also relay a live stream. The Switchblade can either glide silently or use a "quiet" on-board motor for self-propelling.

 

This is part of a sole-source contract awarded to Raytheon for the Navy's Submarine Over the Horizon Organic Capabilities program. It is advantageous to be the only option. No matter how elaborate the mechanism, it is the best solution. If only my projects were accepted with the same metality.

 

Here is a dramatic demonstration of the Switchblade lauched from a land-based lauching system.

 


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3

(From 2011)

 

It's a BIRD?.. It's a PLANE? It is the latest in war technology. The U.S. Military released new details about their most recent test flight of a prototype aircraft named, Falcon Hypersonic Technology Vehicle 2 (HTV-2). During the August 11th demo flight, officials announced the HTV-2 separated smoothly from the Minotaur IV launch vehicle. It flew on to break records.


HTV-2 is a part of the Conventional Prompt Global Strike which is an advance weapon program. The program is working to develop systems to reach its destination anywhere in the world within one hour of dispatch.


Defense Advanced Research Projects Agency (DARPA) was on-sight to oversee the flight  and collect a massive amount of data about the flight. According to DARPA the HTV-2 was able to be controlled for several minutes while traveling effortlessly through the air to about 13,000 mph. Officially  billed as the fastest aircraft ever built.


Traveling to speeds up to 13,000 mph there is a grantee of high temperatures inside  and out of the aircraft. The HTV-2 reached up to 3,000 degrees Fahrenheit (1,927 degrees Celsius) at times during flight.

DARPA was able to capture the "mouth dropping flight" on amera. DARPA director Regina Dugan stated, “We were fortunate to also obtain handheld camera footage of the HTV-2 flight. It gives us a visceral feel for what it means to fly at Mach 20."

 


It may be able to set flight but still there are many tweaks to be made to HTV-2. Officials said more than 20 air, land, sea and space data collections systems tracked the craft during the test flight. Now it is onward for our military scientists. The next version awaits. (I find it odd they were so public about this vehicle and test.)

 

Update: During the test flight, Darpa lost contact with the HTV-2 hypersonic aircraft. After an exhaustive search, nothing was found, and DARPA went silent on the issue. They release this statement, "Range assets have lost telemetry with #HTV2. More to follow.”


Eavesdropper

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Krishna Naishadham (left) and Xiaojuan Song (Right) holding components of their printed sensor. (Via Georgia Institute of Technology)

 

Some create explosives meant to harm, while others build devices to stop them.

 

Krishna Naishadham and Xiaojuan Song have developed an inexpensive wireless bomb detection sensor that is sure to keep many safe. The two Georgia Institute of Technology researchers joined forces to build a low-cost paper-like wireless sensor and communication device using inkjet printer like technology to  deliver sensors in large quantities for those who need it. 

 

Functional carbon nanotubes are at the heart of technology. The nanotubes are coated with a polymer that attracts ammonia, a component of many explosive devices. To apply the nanotubes to the paper electronics the team used sound to create a liquid out of the material, a process called sonication. Along with the liquefied sensor material, a liquid of Ag nanoparticles in an emulsion is used to apply the other RF related components. Both "inks" can be applied to almost any surface at a low 100 degree Celsius temperature.

 

Song explained, "The optimized carbon nanotubes are applied as a sensing film, with specific functionalization designed for a particular gas or analyte. The GTRI [Georgia Tech Research Institute] sensor detects trace amounts of ammonia usually found near explosive devices, and it can also be designed to detect similar gases in household, healthcare and industrial environments at very low concentration levels." Naishadham stated that the sensor can detect traces as low as 5 parts per million.


This new approach to stand off detection can be made anywhere a printer is available. The team states that detection occurs at a safe distance. Building a network of these devices working in tandem is the ultimate goal of effort. They are committed to bringing this tech to "military and humanitarian missions." However, once ammonia is detected, knowing where the trace is coming from is the next issue to handle. At this point, I would just stand still indefinitely and be happy I did not walk to imminent destruction. 

 

Eavesdropper

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Conceptual landing of a SpaceX Falcon rocket

 

There is a design for a "green rocket" that will not make a big impact on the planet, literally. A private space firm, SpaceX, has designed a rocket called the falcon, a reusable payload rocket. Currently, the falcon rocket is sent into space, and after it delivers its payload, the rest of the hardware is discarded.

 

In the past NASA had recovered and refurbished rocket segments from oceanic spashdown, but their refurbishment process was so labor-intensive that it was more of a financial liability than a money saver. So, how is the falcon project any different think of a rocket launch a reverse a rocket landing? The nearly-empty first stage rocket will reignite some of its engines to turn around and come back to its launch site, and will then land vertically on rocket power, softly, on its tripod landing gear. SpaceX aims to have the second stage also re-enter behind a heat shield on its nose, and do the same vertical rocket landing.

 

Brute force methods almost always trump the more elegant and complicated solutions. SpaceX's vertical landing is definitely leaning towards a clean and elegant rocket recovery. If this does have some success, we can expect a revolution in rocket procedures.

 

SpaceX has a near-term goal of being another way to take astronauts to the International Space Station, aside from the Russian Space Program. The long-term vision for SpaceX is round trip human visit to Mars.

 

 

Eavesdropper

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The Transition Airplane/Car is out selling every single light aircraft available today, in pre-sales. What makes it so coveted? It is street legal, and it is available now.

 

The company Terrafugia, (pronounced 'ter-ra-FOO-gee-ah') and founded in 2006 by MIT aeronautical engineers and MBAs, brings their passion for private aircraft to a new frontier, the street. The "Transition Roadable Aircraft lets the owner drive their plane to an airport, take off, and land again without ever worrying about where to store the vehicle.

 

In flight, the Transition burns 5 gallons per hour, with a maximum range of 490 miles, 787 km. On the road it gets a respectable 35 miles per gallon, 14.9 km/L. Fortunately, it uses high octane gasoline available at almost every gas station.

 

The obvious demographic comes in how the cargo storage size in described. The cargo area is repeatedly said to carry golf clubs; having which was the main hurdle to my purchase. The overall combined passenger weight limit is around 400 lbs, 181 kg.

 

The Transition is certified as a Light Sport Aircraft. Getting a Sport Pilot license to fly one only requires 20 hours of flight time. Test driving a Transition is an option for sometime in 2012, around the time of the first customer delivery.

 

At $250,000 USD, $10,000 down for preordering, it is sure to be a big seller. Take a look at the Terrafugia site for more information and photos/video on this student started, now professional engineer operated avionics company.

 

Eavesdropper

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A friend of mine asked the old question, "where are our flying cars?"

 

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Michael Moshier and Robert Bulaga concept flying car

 

After a quick search I found a promised flying car from the founders of Trek Aerospace. A brief history of their greatest project to date. The SoloTrek XFV was a single person vertical take-off and landing aircraft (VTOL). The XFV was able to maintain fright for 2 hours with maximum speeds of 100km/h. Overall, the XFV travelled 200km. The special duct design of the shrouded propellers gives more lift that any other system of similar size.

 

On one test in December 2002, a tether used to hold the XFV down was sucked into one of ducts. Although crashing to the ground, the pilot was fine but the XFV was not. With the craft completely destroyed, they were not able to meet the schedule and lost funding. Later, the team developed the Springtail EFV (exoskeleton flying vehicle) for a $5 million dollar DARPA contract. The Springtail EFV finished and this contract was completed. See video of the Springtail EFV below. Other unmanned drones were created with this tech. One looked like an X-wing fighter from Star Wars. (The original SoloTrek XFV is on display at the Hiller Aviation Museum in San Carlos, California)

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X-Wing style drone

 


 

Now the Trek team, Michael Moshier (aircraft designer) and Robert Bulaga (test-pilot) now want to make a hybrid electric/fuel flying car. Moshier said, "Ever since the Jetsons, we’ve been promised that an air car is just around the corner. But the technologies and knowledge necessary to build such a machine have not been available – until now. And it will be developed here in the USA." However, at the moment the team is busy trying to raise funding for the project.

 

They are targeting the early use of the flying car in third world countries as a quick medical evacuation vehicle, search and rescue, and police patrol. Sounds straight out of science fiction.

 

However, perhaps the world is not ready for flying cars. My friend said it best, "people can't even drive safely in two axis, do we really want to give them a third?"

 

Eavesdropper


Need a jet pack style aircraft now? They are available. Check out the following blog posts.

Jet-wing jetpack test flight.

Jet pack for the work commute.

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This first successful flight of a military helicopter using a algae-based biofuel was conducted this week. A MH 60S Seahawk was flown on fuel dubbed Solajet HRJ-5 jet fuel, which is a 50/50 blend of Jet-A and algae-based fuels. The fuel was designed by Honeywell UOP and Solazyme in tandem with the US Navy and DLA-Energy. The concept is to just use the fuel in the vehicle without any modification to the engine. The demonstration went off without a hitch.

 

Solazyme CEO Jonathan Wolfsan said after the test, "We applaud ASTM International and the ATA and CAAFI for their efforts to advance the world’s newest and most sustainable fuels for aviation.  The aviation industry has demonstrated a strong leadership position in fuel supply diversification and sustainability, and today’s announcement is a major step in its efforts to commercialize advanced low-carbon biofuels... and reinforces the Navy’s commitment to securing our nation’s energy supply."

 

A similar 50/50 blend was tested with additional success by the U.S. Air Force on a Globemaster III jet. The military, as a whole, pledges to use 50% renewable energy within ten years. Algae-based fuels are part of the second generation biofuels, and is indeed renewable. Additionally, the U.S. Departement of Energy estimates that to grow enough algae to replace petroleum as a fuel, in the USA, would require an area about 15,000 square miles (39,000 square km). About 0.42% of the US land mass, less than 1/7th of the area used to farm corn. The algae Biomass Organization also claims they can meet price parity with oil by 2018, only if tax credits are awarded. Algae-electric hybrids, anyone?

 

Eavesdropper

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What happens when the brains of a thermal engineer from NASA and a professor from Chicago's Illinois Institute of Technology synergize? An electrohydrodynamic (EHD)-based thermal control system is born.

 

Jeffery Didion, a thermal engineer at the NASA Goddard space flight center, and Dr. Jamal Seyed-Yagoobi, a professor at the Illinois Institute of Technology in Chicago, with technical partnerships with the U.S. Air Force and National Renewable Energy Laboratory have collaborated and created a thermal control that uses no mechanical pumps, nor any other moving parts. The EHD pump operates on the electro-fluid-dynamic principle, also known as electrokinetics. A shaped electrostatic field is produces which creates a hydrostatic pressure in the coolant. This forces the hot fluid through tiny ducts, like a radiator, inside a thermal cold plate away from sensitive circuitry. Size, weight, and power is saved versus conventional pumps. Overall power consumption of the device is in the half watt range. The EHD pump can be scaled for the application.

 

Currently the team is exploring other substrates, materials, and micro-fabrication techniques to reduce the size and increase the durability of the EHD pump. A prototype is scheduled to be sent to the International Space Station in 2013.

 

Eavesdropper

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