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12 Posts tagged with the nasa tag
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Dragon capsule (via SpaceX)

 

SpaceX (Space Exploration Technologies Corp.) has recently announced that they will launch their Dragon free-flying reusable space craft on Tuesday May 22nd. This will mark the first time in history that a commercial company has launched a manned space vehicle into space to rendezvous with the International Space Station.

 

The Dragon re-usable space craft was designed using three main components which feature a nosecone that’s used as a shield during lift-off and houses the docking adapter needed to connect to external hatches found on the ISS. The second component featured is the spacecraft itself and was designed to be configured based on payload specifications and houses the avionics, RCS (Reaction Control System or thruster control systems) system, parachutes and other un-pressurized cargo/systems. The third component featured on the spacecraft is the Trunk which is used for un-pressurized cargo, solar arrays and thermal radiators needed to power the craft.

 

The re-usable vehicle will be launched atop of SpaceX’s Falcon 9 two-stage heavy-lift rocket which uses 10 Merlin 1C liquid oxygen and kerosene motors (9 on the first stage and 1 on the second). The mission will bring much needed supplies to the ISS as well as challenge the Dragon in a series of tests designed to test the feasibility of using commercial craft for future missions contracted through NASA and other organizations. If all goes well the launch will take place at Cape Canaveral at 4:15 AM Eastern Time and is expected to return a few hundred miles off the coast of California two weeks later. For those interested in watching the launch head over to SpaceX.com which will start broadcasting 40 minutes prior to launch.

 

Update: The rocket was scheduled to launch this past Saturday, the 19th. However, the team discovered a faulty check valve on the "Merlin Engine." The component was swapped, and not the historic flight will take place this Tuesday, the 22nd. The post was updated to reflect the change.

 

Update 2: The Falcon 9 is now in orbit. The launch was successful.

 

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If you remember the movie ‘Alien’, the crew was tasked with mining various planets and asteroids before their eventual demise on planet LV-426 (Everyone but the hero, that is). While that was science fiction, a new start-up company wants to make mining asteroids and other planetary bodies a reality.

 

Called Planetary Resources, the company is looking to explore the vastness of space. as well as mine valuable metals and water from resource-rich asteroids. To do this, the company will first deploy a low-cost ‘Arkyd-Series 100 Leo Space Telescope’ to search for near-earth asteroids that are rich in resources. Once potential asteroids are found, the ‘Arkyd-Series 200 Interceptor’ (a powered version of the 100) that houses additional scientific equipment will then head to the target and assume a geostationary orbit where it will collect further information on the suspected resources.

 

Once the information collected by the 200 series is confirmed, a ‘Arkyd-Series 300 Prospector’ with laser-based communications is sent out to survey the asteroid and collects information on its shape, density and surface/sub-surface composition in preparation for mining to begin. Initially, only asteroids that contain water will be mined as it can be broken down to its base components (hydrogen and oxygen) and used for fuel making the asteroid a kind of space gas station. The company hopes to use their Arkyd system as a cost-effective means of space exploration while simultaneously grabbing precious metals while doing so.

 

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Concept art for the stages of mining: (1) Scan for targets (2) Up close data collection (3) In depth scan of asteroid (4) Actual mining operation

 

So far the company has no actual details of exactly how these planetary bodies will be mined (I have to go with the concept of Alien's Nostromo, send people there) and transported back to earth but the idea is intriguing to say the least.

 

The company was founded by X Prize board members Eric Anderson and Peter H. Diamandis. Although this effort seems far-fetched, several billionaire investors are banking on the quest. Director James Cameron, Google CEO Larry Page, Google chairman Eric Schmidt, Google executive Ram Shriram, Ross Perot Jr., and Microsoft executive/verteran astronaut Charles Simonyi, to name a few. With the potential operating income, who knows what the future holds for Planetary Resources.

 

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The opening the Japanese animated series "Planetes," depicting the fictional first space debris collision on a commuter transport.

 

The earth has so much garbage in orbit that it’s becoming an increasing concern to not only NASA but to the US Air Force, as well. To help with the problem the Air Force has awarded preliminary contracts to both Lockheed Martin and Raytheon Corp. ($107,000,000 US. each) for the AF’s ‘Space Fence’ program which will be used to track small (1 to 10 centimeters in size) orbiting debris that can cause considerable damage to both satellites and space craft. Lockheed’s solution is to develop a ground-based radar system that will be able to locate and identify the tiny space junk. Their design will consist of two to three radar systems that use the S-band range in the electromagnetic spectrum which will enable them to track objects or microsatellites in low-earth orbit at about the size of a basketball. These radar stations will be placed strategically around the globe which will provide ‘Fence’ coverage even in the southern hemisphere.

 

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Ground based radar tracking system for space debris (via Lockheed Martin)

 

Raytheon has a similar approach to Lockheed which also uses a system of ground-based S-band radars to help in low-orbit earth detection of space garbage. However, Raytheon’s prototype system is already in the testing phase, actively tracking space debris, and was demonstrated to the Air Force back in January of 2012. Both systems so far have been successful in preliminary tracking tests and are more than capable of the task for which they were designed, but there can only be one winner. The victor will be chosen later this year with the winning system fully implemented by 2017. Lets hope a space debris solution is chosen before regular civilian commuter flights head into orbit.

 

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Other Space Debris Cleanup related news:

New satellite aims to chase down and clean up space debris

NASA to shoot lasers at space debris

SETI to re-start looking for life elsewhere, and track garbage

Space debris threatens the Space Station

Russian POD orbital debris collector

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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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(Left) SUGAR high/freeze (Right) supersonic Boeing concept (via Boeing)

 

"Green" is becoming the norm in new design. Boeing is jumping on the bandwagon and looking to win a major contract from NASA to create new subsonic/supersonic aircraft that will be more environmentally friendly. Concepts for the subsonic aircraft (noted as N+3 for the next three generations of aircraft) are all derived from the project known as SUGAR (Subsonic Ultra Green Aircraft Research). These include "SUGAR free" and "refined SUGAR" (I’m not making this up these puns) that resembles current 737 designs. SUGAR high and the electric/gas hybrid SUGAR Volt are more of a futuristic design and SUGAR ray (a design that looks like a B2 stealth converted for passengers) bringing up the rear. Finally, the SUGAR freeze (based on the SUGAR high) runs on cryogenically frozen liquid natural gas, making it 64% more efficient than current Boeing 737-800 planes.

 

All planes in this category have been designed to decrease CO2 emissions in one way or another; however the SUGAR Volt stands out from the pack because of its battery/fuel hybrid engines which reduce its energy burn by 55% over the other designs.

 

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(Left) refined SUGAR (Middle) SUGAR ray (Right) SUGAR high (concepts via Boeing)

 

The supersonic designs are just as diverse as their slower moving brothers that include a swing-wing configuration, a fixed-wing design that uses a ‘v-tail’ concept (called Icon 2) and a joined-wing ‘scissor’ (1 wing joined at the fuselage that rotates on a pivot point) concept. All the supersonic crafts are designed to lessen or reduce the inevitable sonic boom created with super-fast flight. Yes, Boeing understands that while the supersonic models aren’t exactly up-to-speed (as it were) on the whole green initiative, they more than make up for it in raw speed alone. Conceptual designs were also submitted by Northrop Grumman and Lockheed Martin to NASA as well, all in the hopes of winning a contract. If all goes according to plan, the first group of next generation planes will hit the runway in 2030.

 

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1

 

The practical beginnings of human-body augmentation are on us. GM and NASA have partnered to create a "Human Grip Assist" device,  which they are calling the Robo-Glove or K-Glove. The tech is pulled from the joint developed Robonaut 2 humanoid robot worker in the International Space Station.

 

Like in the Robonaut version, the glove is laden with sensors that help it decide what operations to perform. Pressure sensors let the Robo-Glove know it needs to start gripping. At which point the glove starts it actuators pulling in the synthetic tendons inside the glove. The team is boasting that 5-10 pound of human grip strength translates to 15-20 pounds of force in the glove. Actuation is produced via cords within the glove surface. A motor winds the cords up to pull the fingers into themselves. Very much like the tendon/muscle combo in human joints.

 

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Robo-Gloves in use and construction image (via NASA & GM)

 

GM is squarely fixed on applying the glove in the automotive industry.

 

GM manufacturing engineering director Dana Komin explained, "When fully developed, the Robo-Glove has the potential to reduce the amount of force that an auto worker would need to exert when operating a tool for an extended time or with repetitive motions. In so doing, it is expected to reduce the risk of repetitive stress injury. We are continuously looking for ways to improve safety and productivity on the shop floor. "

 

The Robo-Glove houses the actuators and tendons as mentioned above, but also a LCD for programming and diagnostic. A lithium-ion battery attached to the user's belt powers the gloves. Glove materials are constructed by the Oceaneering company (added link for those interested in similar projects). At the moment, third generation prototypes, the gloves weight 2 pounds each. The next gen, production models, are promised to be smaller and lighter than previous iterations.

 

Although great for workers, I believe medical applications will be a major user. Those who have lost their grip strength, now have it back.

 

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See behind the scenes at the Robo-Glove Test Procedures, from the view of Engineering On Friday after the link.

 

Robo-Glove fun facts:

The Robonaut 2 (R2) projects have given GM and NASA 46 patents.

- 21 of which are for the R2's hand.

- 4 apply to the Robo-Glove

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Video via Nasa

 

February 24th, 2011 a dexterous humanoid robot, Robonaut 2, was launched into space to be the first of its kind in space and the first United States robot to make its way to the international space station. NASA and General Motors have been working together to create a more human like robot that can simulate and execute human motions and actions. Succeeding in creating such a robot will allow it to perform current human tasks, potentially the dangerous ones or repetitive tasks while also allowing it to use current tools and technologies used by humans.

 

 

Currently, tests are being performed on the robot in order to calibrate it before it is put to use in carrying out missions. Calibrating it involves comparing the motions of the hardware in the 1G environment on Earth, and taking it to the 0G space environment. The first tests on the robot included booting it up and making sure all the circuitry and software made it to the space station in working condition. Just recently, they began testing the movement of the joints and hands. Ultimately, the robot is controlled by a set of software parameters to keep it safe. However, its actions and movements can be controlled from a location on Earth or the space station itself.

 

 

Robonaut 2 was built and equipped with a wide range of advantages over the former Robonaut 1. It is capable of carrying out tasks four times faster than the original. Its systems include built in infrared sensors, a high resolution camera, and has an advanced sensing system. Additionally, its movement technologies include extensive neck travel, ultra-high speed joint controllers, enhanced finger and thumb movements, and series elastic joint technology.

 

 

Robonaut 2 has an identical twin on the ground that will be used to simulate missions and tasks. It will be placed in a replica environment with panels and systems that simulate that of the space station itself. After the simulation is complete, the program can be then sent to the orbiting Robonaut for execution. Future plans for the robot include creating legs for it to navigate around the space station or possibly wheels and a rover base so it can travel across terrain on a different planet.

 

 

See more robots in the element14 Robotics Group.

 

 

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LARES (via ESA & Stephane Covaja)

 

The Laser Relativity Satellite (LARES) was launched into orbit on February 13th to challenge Einstein's theory of relativity.  The satellite is made from tungsten and measures only 36 centimeters wide. In addition, it was constructed with many reflectors on its surface used to measure its position from Earth using lasers on the ground.

 

 

Past satellites were placed into space to challenge the exact same theory with varying results. One, Gravity Probe B Satellite (2004 - costing $750 million), brought in results within 19 percent while measuring the geodetic effect. This processes measures distortions in the fabric of space-time due to Earth's gravity field.  Scientists state that LARES should be able to produce precise measurements within one percent.

 

 

With such precise measurements, scientists and researchers will be able to put several theories to the test including gravitational laws, general relativity, and mainly the Lense-Thirring effect. The Lense-Thirring effect is derived from general relativity and describes how the rotation of nearby objects affects the rotation of other nearby objects. If the precision lasers pick up a disturbance in the orbit of LARES, it will verify relativity among other theories.

 

 

The satellite was launched by Vega, a small rocket used to economically launch lower mass satellites into orbit around Earth. The launching station is based in Kourou, French Guiana. The launch also has a secondary goal, to make Kaurou a ESA, and other space agencies, launch hot-spot. With NASA out of the shuttle business, Kourou is sure to be busy.

 

 

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NASA Is Asking You To Help

Posted by Cabe Atwell Jan 19, 2012

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You do not have to be a rocket scientist to work alongside NASA scientists anymore. NASA has launched a new website, code.nasa.gov, geared towards involving the community in all sorts of projects being developed at the agency. Their efforts hope to make a platform to streamline the open-source development process and take advantage of the community’s proven highly effective contribution.


According to NASA, this project will see three phases. The first provides an online directory of all current projects NASA is working on, along with related useful contacts and guides to make it easy for the public to partake in the open-source process. This stage will be followed by the creation of a forum designed to ease communication among public participants and NASA professionals.


Their third phase really brings it all together. They are committing to supplying development projects with as many tools and mechanisms need to be truly effective. Organization will undoubtedly be the most useful tool to release this type of idea energy. Code.nasa.gov will do this by employing distributed version control to easily update software changes. It will track important issues within projects, it will allow for continuous integration, facilitated documentation, communication, planning and management too keep track of all the brainy goodness.


To make the use of the community contribution from the start, they will also create and host tool, service and process chains. All for the purpose of making the open-source process smoother while also more efficient.


Who knows when we will land on an alien world, but your contribution could help us get there.


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Trackable objects in Low Earth Orbit. One of these may be for communication freedom someday. (via European Space Agency)

 

At the Chaos Communication Congress in Berlin, an "unsensorable internet" via private satellite was proposed. The concept stems from telecom limitations and government sanctions, such as the Stop Online Piracy Act (SOPA). (SOPA is currently being reviewed by the House Judiciary Committee.) By using a satellite, no government or privatly controlled wires are need. Sidestepping earthly bonds may be the only way from true unregulated communication.

 

High altitude balloons have been launched with notable success. However, such a device can only handle a narrow slice of the planet's surface, by comparison to satellites. Some amateurs have placed satellites into low earth orbit. At that position, an object would circle the earth every 90 minutes. The only option is geostationary orbit above the equator.

 

Although outer space is not governed by any country that sits underneath, people are free to attack/disable satellites at will. In most cases, such an action would be taken as an act of war. The "free internet" people would not be able to do much more than hang their heads low after the event.

 

As a compliment to the satellite system, a ground based network was also proposed by the "Hackerspace Global Grid" (HGG). The vision is to create a "fallback infrastructure in case of natural and economic disaster to stay connected." Their system creates a land based network of base stations that keep a constant contact with the possible satellite, even in low orbit. There are already DIY systems for tracking satellite positions. Now it is just a matter of relaying the data. The goal is to provide these stations at around $130 USD. Cheap enough when everyone willing to host a node, could.

 

Both endeavors are plagued with the same stopping limitation, lack of funding. If this does come to fruition by some means, how would you feel to use an internet controlled by hackers?

 

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HGG also stated that they would like to place an amateur astronaut on the moon within the next 23 years. I think the Google Lunar X Prize, placing a robot on the moon, should be conquered first.

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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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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