Armadillo’s upcoming STIG vehicles, suborbital (and orbital) plans

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Stig launch in May 2011

Armadillo Aerospace's Stig rocket lifts off from Spaceport America earlier this year on its ill-fated flight. (credit: Armadillo Aerospace)

For a decade now Armadillo Aerospace has been working a variety of designs for suborbital vehicles, initially in pursuit of the Ansari X PRIZE and more recently for commercial and government business: the company has a partnership with Space Adventures to develop suborbital vehicles for space tourism flights as well as a NASA Commercial Reusable Suborbital Research (CRuSR) contract to perform a series of test flights. Armadillo has also been working on a long “tube” rocket dubbed Stig (after the character on Top Gear; it’s also an acronym for “suborbital transport inertially guided”). Despite a setback earlier this year, the company has plans for two more Stig test flights this year.

The first Stig flight, designated Stig A-1, took place in May from Spaceport America in New Mexico. Unfortunately, the flight was not a success, suffering from several problems, including a roll problem and a failure of its parachute system. “It actually flew really well, it just didn’t land very well,” said Armadillo’s Neil Milburn during a Commercial Spaceflight Forum organized by SpaceUp Houston earlier this month. He showed a video of that fateful flight during his presentation at the Houston event.

Despite that setback (as well as the loss of another vehicle, a “SuperMod” called Dalek, in June), the company is moving ahead with future Stig flights. Milburn revealed at the forum that Armadillo is working on two more Stig vehicles it plans to fly later this year. Stig A-2, Milburn said, will feature a new film-cooled 5000-lbf (22,200-newton) engine. “It’s probably the best engine we’ve built to date,” he said. Armadillo hopes to launch that from Spaceport America in September. That will be followed in November by Stig B, which will have slightly better performance: while they hope to fly Stig A-2 to 80 kilometers, Stig B will be a “true 100-kilometer-capable vehicle”, he said.

The tube rockets are designed to be clustered and staged to allow for larger payloads to be carried on suborbital flights. The engine will also serve as the basis for its suborbital space tourism vehicle; Milburn said a first flight of a “prototype boilerplate vehicle” is planned for 2012. The vehicle will take off vertically with eight engines, turning off four in flight. In a shift, though, the vehicle will not perform a powered vertical landing. “We’re working on a GPS steerable recovery system with chutes” that they plan to test on the next Stig flight. He suggested the shift from a powered landing to using parachutes was intended to lower the fuel load on the vehicle.

Later, in the Q&A portion of the panel session, Milburn said Armadillo is looking, eventually, to orbital flight as well. “We intend to go orbital down the road,” he said. “We want to crawl before we walk and before we run.” He said they would be interested in launching from a coastal spaceport in Texas, like the one that been in some reports earlier this summer; “we’ve even talked about launching from the Gulf [of Mexico], if we can’t find a land base.”

Another step forward for SpaceShipTwo’s rocket motor

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If you go to Virgin Galactic’s web site today you’ll see a release about the first flight of WhiteKnightTwo by Virgin Galactic chief test pilot David Mackay, which took place yesterday in Mojave. “I was able to fly WhiteKnight through the full extent of its flight envelope—to its maximum altitude, speed and crosswind limit—so it was a very thorough first look,” he said in the statement, which also indicated he would be making more test flights of the carrier aircraft for SpaceShipTwo in the coming months.

A bigger milestone, though, may have been a few days earlier. According to Scaled Composites’s test summaries, Scaled and Sierra Nevada Corporation performed on Sunday a “full duration hot-fire” of the rocket motor that will power SpaceShipTwo on its suborbital flights. The 55-second burn appeared to be a success, according to the brief summary, which indicated that “all objectives [were] completed” in the test. The engine test was the seventh for the full-scale “RocketMotorTwo” engine, and the first in five months.

The slow development of SpaceShipTwo’s rocket motor has been a major factor in the delays involved in getting the vehicle ready for test flights. “They’ve had to scale up the hybrid from a relatively smaller version to a bigger version,” George Whitesides, president and CEO of Virgin Galactic, said at the NewSpace 2011 conference at NASA Ames at the end of July. “We’ve seen some good progress over the summer,” he added. “We expect to be flying into space next year.”

Blue Origin has a bad day (and so do some of the media)

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Blue Origin PM 2 in flight

Blue Origin's PM 2 vehicle in flight shortly before it lost control last month. (Credit: Blue Origin)

Last month the small community of people who closely follow the NewSpace field expected a test flight by ultra-secretive Blue Origin, based on a Notice to Airmen (NOTAM) issued by the FAA warning of “rocket launch activity” by the company at its launch site in west Texas on August 24. that date came and went without any news, which is not surprising given how the company closely rations information about its activity.

Late today came news that the test flight did not go well. The Wall Street Journal was the first to report that the vehicle suffered a malfunction in flight and was destroyed. The initial report indicated that the failure took place when ground controllers lost contact with the vehicle during the flight. The vehicle was either severely damaged or destroyed; “parts of the vehicle were recovered on the ground and are now being analyzed by company experts,” the Journal article reported. An unnamed local official in the nearby town of Van Horn, Texas, claimed in an interview with Forbes.com that some locals saw the launch failure, likening it (with some amount of hyperbole, no doubt) to the Challenger accident.

In a rare public statement, Blue Origin posted a brief note to the “Updates” page of its web site late Friday afternoon. “[L]ast week we lost the vehicle during a developmental test at Mach 1.2 and an altitude of 45,000 feet,” the statement, signed by Blue Origin founder Jeff Bezos (of Amazon.com fame), reads. “A flight instability drove an angle of attack that triggered our range safety system to terminate thrust on the vehicle.” Included in the update were several images from the test flight and a previous, successful one in May. Although Blue Origin has posted information about research opportunities and job openings, this is the first update about its flight test activities posted in exactly 56 months: the first, and only other one, is dated January 2, 2007. (The page does disclaim, in understated language, “We won’t make these updates frequently.”)

The company disclosed few other details about the vehicle, which is known as “PM 2″ in its experimental permit with the FAA’s Office of Commercial Space Transportation. Bezos did note that they did “a short hop mission” three months ago; that took place on May 6, according to the list of permitted launches on the FAA’s web site (not yet updated to include the August launch failure.) The “PM” designation suggests this is a propulsion module in Blue Origin’s two-stage suborbital vehicle design, with a separate crew module; Bezos notes in a postscript to his statement that “the development vehicle doesn’t have a crew capsule”, only a round fairing. “We’re working on the sub-orbital crew capsule separately, as well as an orbital crew vehicle to support NASA’s Commercial Crew program,” he adds.

Bezos, in his note, sounded undaunted by the failure. “Not the outcome any of us wanted, but we’re signed up for this to be hard, and the Blue Origin team is doing an outstanding job,” he wrote. “We’re already working on our next development vehicle.”

Some in the media, though, tried to unnecessarily play up the implications of the test flight failure. “The mishap, which industry officials said occurred last Wednesday, dealt a potentially major blow to the ambitions of Mr. Bezos,” claimed Andy Pasztor in his Wall Street Journal article, even though Bezos himself didn’t sound overly concerned in his message. Later, noting that Blue Origin is one of four companies with 2nd round NASA Commercial Crew Development (CCDev-2) awards, Pasztor suggested that “The failure also could set back White House plans to promote commercially developed spacecraft to transport crews to the international space station by the second half of this decade,” even though the test flight did not appear to be directly related to their separate CCDev-2 work, as Bezos also indicated in his note.

Separately, the Wall Street Journal published a blog post with the curious title “Rich Guys Have No Luck in Space”. The text of the blog post, though, doesn’t match the headline: some of those profiled seem to have had, or are having, at least halfway decent luck: Paul Allen was successful, for example, backing SpaceShipOne in the $10-million Ansari X PRIZE, while Elon Musk is enjoying some technical and business success at SpaceX after some early launch failures of its Falcon 1.

It’s worth remembering that this was, by all accounts, a test flight. And, by their nature, not all test flights are successful: that’s why you fly to, to find problems and correct them. Moreover, the loss of PM 2 is hardly the first time a vehicle has been lost in a test flight, either by a company or a government agency. It’s the nature of aerospace. By Bezos’s account, he sounds ready to move ahead, undaunted by the failure. There’s also a lesson for some in the media as well, to not overreact from a single test failure (or, for that matter, a single successful test).

Florida- A vacation to go

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If you are the kind of person who enjoys being swept by the cool breeze of wind, while you are dozing off in a chaise longue on the golden sands of a beautiful beach and love to watch the blue sky dipping into the deep blue sea, then traveler you got to visit Florida. Florida is the much famed sunshine state but what makes it the great holiday destination is the fact that it can live up to the hype given by the tourists. Florida has a lot of places that travelers would love to see be it beaches, theme parks, museums and many more places that tourists would die to go for. Each beach in Florida has its own specialty, if you would like to row a boat in the peaceful seas then you got to try Dania beach or crescent beach. For the party animals you have to visit Miami Beach and south beach to experience night life at its heights.  You will be in for good diving adventures when you visit Panama City beach, experience the underwater world of scuba diving, snorkeling etc here.
Don’t spend all your vacation at the beaches alone, there are some great theme parks in Florida like the Disneyworld theme park, it consist of a number of divisions like the magic kingdom, animal kingdom, Epcot and more. Universal is another theme park which has a lot of rides and attractions. There are a number of theme parks which are down the pipeline too, so you will be pleasantly surprised with a new attraction every year. Do visit Florida and enjoy your vacation booking one of the Florida villas or Orlando villas. Book a Florida villa now.

NASA’s Chandra Finds Nearest Pair of Supermassive Black Holes

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Astronomers using NASA's Chandra X-ray Observatory discovered the first pair of supermassive black holes in a spiral galaxy similar to the Milky Way. Approximately 160 million light years from Earth, the pair is the nearest known such phenomenon.
The black holes are located near the center of the spiral galaxy NGC 3393. Separated by only 490 light years, the black holes are likely the remnant of a merger of two galaxies of unequal mass a billion or more years ago.
"If this galaxy wasn't so close, we'd have no chance of separating the two black holes the way we have," said Pepi Fabbiano of the Harvard-Smithsonian Center for Astrophysics (CfA) in Cambridge, Mass., who led the study that appears in this week's online issue of the journal Nature. "Since this galaxy was right under our noses by cosmic standards, it makes us wonder how many of these black hole pairs we've been missing."
Previous observations in X-rays and at other wavelengths indicated that a single supermassive black hole existed in the center of NGC 3393. However, a long look by Chandra allowed the researchers to detect and separate the dual black holes. Both black holes are actively growing and emitting X-rays as gas falls towards them and becomes hotter.
When two equal-sized spiral galaxies merge, astronomers think it should result in the formation of a black hole pair and a galaxy with a disrupted appearance and intense star formation. A well-known example is the pair of supermassive black holes in NGC 6240, which is located about 330 million light years from Earth.
However, NGC 3393 is a well-organized spiral galaxy, and its central bulge is dominated by old stars. These are unusual properties for a galaxy containing a pair of black holes. Instead, NGC 3393 may be the first known instance where the merger of a large galaxy and a much smaller one, dubbed a "minor merger" by scientists, has resulted in the formation of a pair of supermassive black holes. In fact, some theories say that minor mergers should be the most common way for black hole pairs to form, but good candidates have been difficult to find because the merged galaxy is expected to look so typical.
"The two galaxies have merged without a trace of the earlier collision, apart from the two black holes," said co-author Junfeng Wang, also from CfA. "If there was a mismatch in size between the two galaxies it wouldn't be a surprise for the bigger one to survive unscathed."
If this was a minor merger, the black hole in the smaller galaxy should have had a smaller mass than the other black hole before their host galaxies started to collide. Good estimates of the masses of both black holes are not yet available to test this idea, although the observations do show that both black holes are more massive than about a million suns. Assuming a minor merger occurred, the black holes should eventually merge after about a billion years.
Both of the supermassive black holes are heavily obscured by dust and gas, which makes them difficult to observe in optical light. Because X-rays are more energetic, they can penetrate this obscuring material. Chandra's X-ray spectra show clear signatures of a pair of supermassive black holes.
The NGC 3393 discovery has some similarities to a possible pair of supermassive black holes found recently by Julia Comerford of the University of Texas at Austin, also using Chandra data. Two X-ray sources, which may be due to supermassive black holes in a galaxy about two billion light years from Earth, are separated by about 6,500 light years. As in NGC 3393, the host galaxy shows no signs of disturbance or extreme amounts of star formation. However, no structure of any sort, including spiral features, is seen in the galaxy. Also, one of the sources could be explained by a jet, implying only one supermassive black hole is located in the galaxy.
"Collisions and mergers are one of the most important ways for galaxies and black holes to grow," said co-author Guido Risaliti of CfA and the National Institute for Astrophysics in Florence, Italy. "Finding a black hole pair in a spiral galaxy is an important clue in our quest to learn how this happens."
NASA's Marshall Space Flight Center in Huntsville, Ala., manages the Chandra program for NASA's Science Mission Directorate in Washington. The Smithsonian Astrophysical Observatory controls Chandra's science and flight operations from Cambridge, Mass.

For more information visit http://www.nasa.gov/mission_pages/chandra/news/H-11-278.html

Nanostart AG welcomes social discourse and transparency for nanomaterials

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The German Advisory Council on the Environment today published a special report "Precautionary Strategies for Managing Nanomaterials." In response, Nanostart AG, the leading financer of nanotechnology growth, is issuing the following statement: Nanotechnology allows people to develop new products and procedures which strongly support us in meeting imminent global challenges in the areas of health, energy and the environment, water supply and mobility.

Microspiders’ polymerization reaction drives micromotors

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Though it seems like science fiction, microscopic "factories" in which nanomachines produce tiny structures for miniaturized components or nanorobots that destroy tumor cells within the body and scrape blockages from our arteries may become reality in the foreseeable future. Nanomotors could transport drugs to specific target organs more rapidly or pilot analytes through the tiny channels on microchip diagnostic systems.

Physicists demonstrate the quantum von Neumann architecture, a quantum processor, and a quantum memory on a chip

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UCSB physicists have demonstrated a quantum integrated circuit that implements the quantum von Neumann architecture. In this architecture, a long-lived quantum random access memory can be programmed using a quantum central processing unit, all constructed on a single chip, providing the key components for a quantum version of a classical computer.

Digital quantum simulator realized

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The physicists of the University of Innsbruck and the Institute for Quantum Optics and Quantum Information (IQOQI) in Innsbruck have come considerably closer to their goal to investigate complex phenomena in a model system: They have realized a digital, and therefore, universal quantum simulator in their laboratory, which can, in principle, simulate any physical system efficiently.