The advantage of this approach, he said, is it allows habitat modules to be launched for “free” — that is, without the need of a dedicated launch. “With every Orion mission, you’re adding something useful and you’re aggregating this larger and larger vehicle in cislunar space,” he said. The disadvantage, said David Smitherman, technical manager of the Advanced Concepts Office at NASA’s Marshall Space Flight Center, is that it is less efficient. He proposed using one or two large modules flown on dedicated SLS launches, which he argued can save mass and provide more volume than a collection of small modules. “The mass actually comes down a little bit as you go from a three-module set to a two-module set to a single module, even though you’re increasing volume all along the way,” he said, citing research to be published later this year. NASA is augmenting its internal planning with a series of study contracts awarded earlier this year under a program called Next Space Technologies for Exploration Partnerships, or NextSTEP. Seven of the twelve NextSTEP studies cover either habitation modules or their key subsystems. Lockheed Martin Space Systems is using its NextSTEP award to study habitat technologies leveraging the company’s proposed Jupiter system for transporting cargo to the International Space Station, as well as the capabilities offered by Orion. “Orion is a highly capable spacecraft designed to keep crews alive in this environment for a long period of time,” said Lockheed Martin space architect Josh Hopkins. “That means you can keep the outpost for the first several flights to be relatively small and inexpensive.” What happens once the NextSTEP studies are completed next year is not yet clear, Hatfield said, and will depend in part on the results of the studies. “That’s something we have to work out,” he said, adding that part of his current work includes drafting an acquisition strategy that could incorporate international or public-private partnerships for some elements. Although the technical and programmatic structure of those cislunar missions remains to be developed, there is widespread agreement that such missions are needed before human missions to Mars. “We cannot take that giant leap to a thousand-day Mars mission straight from the ISS,” Hopkins said. “We need something that is on the edge of deep space.”
Sunday, May 31, 2015
NASA Developing Plans for Human Missions to Cislunar Space in 2020s
Saturday, May 30, 2015
Russian Statement on Proton Failure Leaves Questions
PARIS — The May 29 statement by Roscosmos on the May 16 Proton rocket failure confirmed initial suspicions of a third-stage engine issue but otherwise left many questions unanswered about the failure’s origin. Here is the full-text version of the best translation we have found: The Roscosmos Agency Commission investigating the failed launch of the Proton-M with the Centenario spacecraft May 16, 2015 from Baikonur Cosmodrome announced the outcomes of its work. Advertisementgoogletag.cmd.push(function() { googletag.display('div-gpt-ad-1418322387828-0'); }) The commission members (representatives of the customer, Roscosmos and the Russian Federation Ministry of Defense, heads of industry R&D institutes and production facilities) performed an analysis of the Proton-M and its components manufacturing process, the process of acceptance, transportation, testing and processing, as well as telemetry and ranging information. Conclusion: Abnormal termination of the Proton-M flight was caused by the Stage 3 Steering Engine failure due to increased vibration loads occurring as a result of the imbalance of the turbo pump unit rotor caused by the degradation of its material properties at high temperatures, and improper balancing. By the order of Roscosmos head Igor Komarov, Khrunichev Space Center and its subsidiaries are developing an action plan to address the causes of the accident, which includes: Changing materials used for the turbo pump rotor shaft manufacturing; Revision of the turbo pump rotor balancing techniques; Upgrade of the steering engine turbo pump mount to the main engine frame, and others. The Commission also identified a number of deficiencies in the enterprises’ Quality Management System. An action plan to address these will be developed within a month. The date of the Proton-M next launch will be announced by Roscosmos in June 2015.
Friday, May 29, 2015
NASA Selects 9 Instruments for Europa Mission
Thursday, May 28, 2015
Ariane 5 Lofts Pair of DirecTV Satellites
AMSTERDAM — Europe’s Ariane 5 rocket on May 27 successfully delivered two direct-broadcast television satellites into transfer orbit for DirecTV Group of the United States — one for U.S customers, the other for Mexico — in the vehicle’s 65th consecutive success and the second of six missions planned for 2015. El Segundo, California-based DirecTV said both satellites were healthy in orbit and sending signals, as did the satellites’ two manufacturers in separate statements. Operating from Europe’s Guiana Space Center on the northeast coast of South America, the Ariane 5 first separated the 6,200-kilogram DirecTV-15 satellite, built by Airbus Defence and Space of Europe, followed by the 2,962-kilogram SkyM-1 spacecraft, which was in the vehicle’s lower berth.
DirecTV-15 is the second satellite ordered by the U.S. satellite television giant that will employ so-called reverse-band frequencies for ultra-high-definition (UHD) television broadcasts. Long used for Earth-to-satellite uplinks, frequency regulators have allowed its use for downlinks to open up new spectrum as broadcasters accommodate bandwidth-hungry UHD. The DirecTV-14 satellite, built by SSL of Palo Alto, California, debuted reverse band for DirecTV and was launched in December 2014. Ka-band payloads are now common to DirecTV’s North American fleet. The company has more Ka-band capacity in orbit than anyone else, and more homes receiving Ka-band signals than the combined customer base of the two U.S. consumer satellite broadband providers, Hughes Network Systems and ViaSat Inc. In addition to reverse-band capacity in the 17-gigahertz spectrum, DirecTV-15 carries 28 Ka- and 25 Ku-band transponders. DirecTV said it is capable of operating at any of the company’s five orbital slots over North America — at 99.2 degrees west and 102.8 degrees west in Ka-band, and at 101 degrees, 110 degrees and 119 degrees west in Ku-band. DirecTV-15 will be stationed at 102.8 degrees west for now and is designed to deliver 18 kilowatts of power to its payload at the end of its contracted 15-year life. SkyM-1, built by Orbital ATK of Dulles, Virginia, will be used by DirecTV-owned Sky Mexico from 78.8 degrees west for customers in Mexico, Central America and the Caribbean. SKYM-1 has two reverse-band transponders in addition to its core payload of 24 Ku-band transponders. It is built to provide six kilowatts of power at the end of its 15-year life. Orbital ATK said it has enough fuel for 20 years of operations. The two satellites together weighed nearly 9,200 kilograms. The Ariane 5’s Sylda platform that separates the two satellites and other satellite-integration hardware added about 760 kilograms to the total mass that was carried into orbit. The commercial space-launch sector, including satellite insurance underwriters, is paying especially close attention to the Ariane 5 launch rate this year because both Evry, France-based Arianespace, which operates the Ariane 5, has a full manifest until 2017. Its principal competitor, SpaceX of Hawthorne, California, is also fully booked and has yet to demonstrate its ability to launch its Falcon 9 rocket, which usually carries a single satellite payload, with high frequency. The May 16 failure of a Russian Proton rocket, the fourth in four years, has left Arianespace and SpaceX as the only two vehicles regularly servicing the commercial market. Arianespace had said early in the year it may be able to conduct seven Ariane 5 launches in 2015, depending on satellite customers’ on-time arrival, even as it juggles demand for the company’s medium-lift Europeanized Russian Soyuz rocket and the light-class Vega. But more recently the company has said six Ariane 5 campaigns is more likely.
SpaceX Falcon 9 Certified for Military Launches
WASHINGTON – The U.S. Air Force has certified SpaceX’s Falcon 9 rocket to launch military satellites, completing a nearly two-year process that at times strained the two parties’ relationship and establishing a competitor to United Launch Alliance in the national security marketplace. The Air Force announced the decision May 26, clearing the way for Hawthorne, California-based SpaceX to bid on military launches beginning this year with one of the service’s next-generation GPS 3 positioning, navigation and timing satellites. “This is a very important milestone for the Air Force and the Department of Defense,” Air Force Secretary Deborah Lee James said in the press release. “SpaceX’s emergence as a viable commercial launch provider provides the opportunity to compete launch services for the first time in almost a decade. Ultimately, leveraging of the commercial space market drives down cost to the American taxpayer and improves our military’s resiliency.”
Advertisementgoogletag.cmd.push(function() { googletag.display('div-gpt-ad-1418322387828-0'); }) Denver-based ULA has had the U.S. national security launch market all to itself since it was created in 2006 through the merger of the rocket-making operations of Boeing and Lockheed Martin, which previously were bitter rivals in this industry sector. Air Force officials originally expected SpaceX to earn certification by the end of 2014, but the service announced in January that about 20 percent of the work remained. The delay led the Air Force to re-evaluate its certification process. The process entailed a thorough Air Force review of three successful Falcon 9 launches, the last of which took place in early 2014. Among the problems that delayed certification as identified in a March report by an independent panel was SpaceX’s expectation that its successful track record was enough to win certification and the Air Force’s push for design changes to the Falcon 9. According to industry sources, SpaceX’s practice of tweaking certain parameters of the rocket in between launches also was a factor. “This is an important step toward bringing competition to National Security Space launch,” Elon Musk, SpaceX’s founder chief executive, said in the May 26 release. “We thank the Air Force for its confidence in us and look forward to serving it well.” The Air Force says it dedicated more than $60 million and 150 people to the certification process, which was established in a 2013 Cooperative Research and Development Agreement with SpaceX that the service has declined to release in any form. In the May 26 release, the service said certification involved 2,800 discreet tasks including verification of 160 payload interface requirements, 21 major subsystem reviews and 700 audits to establish a technical baseline. The decision comes less than three weeks after the Air Force announced it had revised the agreement so that SpaceX could earn certification even with several issues outstanding provided the company presents a mutually acceptable plan and schedule for resolving them. Among those open issues identified by the Air Force: SpaceX integrates satellites with its rockets horizontally, but the Air Force prefers vertical integration; SpaceX’s planned addition of GPS-based launch vehicle tracking; information assurance; and secure flight termination. To date, SpaceX is the only company besides ULA to win certification for military launches. SpaceX is developing a much larger rocket called the Falcon Heavy that is expected to debut later this year or next year. SpaceX in April sent the the Air Force an updated letter of intent outlining a certification process for the Falcon Heavy, a process the company hopes to complete by 2017. Meanwhile, the newly certified Falcon 9 will compete head to head against ULA’s workhorse Atlas 5, whose future availability is in question due to a congressional ban, whose final terms are in a state of legislative flux, on the Russian-built engine that powers its first stage. ULA, which is phasing out its Delta 4 rocket, hopes to field a new vehicle dubbed Vulcan around 2020 but continue launching Atlas 5s until around 2025. - See more at: http://spacenews.com/u-s-air-force-certifies-falcon-9-for-military-launches-2/#sthash.anyRMgTG.dpuf
Advertisementgoogletag.cmd.push(function() { googletag.display('div-gpt-ad-1418322387828-0'); }) Denver-based ULA has had the U.S. national security launch market all to itself since it was created in 2006 through the merger of the rocket-making operations of Boeing and Lockheed Martin, which previously were bitter rivals in this industry sector. Air Force officials originally expected SpaceX to earn certification by the end of 2014, but the service announced in January that about 20 percent of the work remained. The delay led the Air Force to re-evaluate its certification process. The process entailed a thorough Air Force review of three successful Falcon 9 launches, the last of which took place in early 2014. Among the problems that delayed certification as identified in a March report by an independent panel was SpaceX’s expectation that its successful track record was enough to win certification and the Air Force’s push for design changes to the Falcon 9. According to industry sources, SpaceX’s practice of tweaking certain parameters of the rocket in between launches also was a factor. “This is an important step toward bringing competition to National Security Space launch,” Elon Musk, SpaceX’s founder chief executive, said in the May 26 release. “We thank the Air Force for its confidence in us and look forward to serving it well.” The Air Force says it dedicated more than $60 million and 150 people to the certification process, which was established in a 2013 Cooperative Research and Development Agreement with SpaceX that the service has declined to release in any form. In the May 26 release, the service said certification involved 2,800 discreet tasks including verification of 160 payload interface requirements, 21 major subsystem reviews and 700 audits to establish a technical baseline. The decision comes less than three weeks after the Air Force announced it had revised the agreement so that SpaceX could earn certification even with several issues outstanding provided the company presents a mutually acceptable plan and schedule for resolving them. Among those open issues identified by the Air Force: SpaceX integrates satellites with its rockets horizontally, but the Air Force prefers vertical integration; SpaceX’s planned addition of GPS-based launch vehicle tracking; information assurance; and secure flight termination. To date, SpaceX is the only company besides ULA to win certification for military launches. SpaceX is developing a much larger rocket called the Falcon Heavy that is expected to debut later this year or next year. SpaceX in April sent the the Air Force an updated letter of intent outlining a certification process for the Falcon Heavy, a process the company hopes to complete by 2017. Meanwhile, the newly certified Falcon 9 will compete head to head against ULA’s workhorse Atlas 5, whose future availability is in question due to a congressional ban, whose final terms are in a state of legislative flux, on the Russian-built engine that powers its first stage. ULA, which is phasing out its Delta 4 rocket, hopes to field a new vehicle dubbed Vulcan around 2020 but continue launching Atlas 5s until around 2025. - See more at: http://spacenews.com/u-s-air-force-certifies-falcon-9-for-military-launches-2/#sthash.anyRMgTG.dpuf
Monday, May 25, 2015
Brightest Galaxy in the Universe Found
The engine behind the galaxy's brilliance may be a supermassive black hole, researchers said. Such behemoths lurk at the heart of most, if not all, galaxies; material spiraling down into the black holes' maws heats up tremendously, emitting huge amounts of light in visible, ultraviolet and X-ray wavelengths.
If this is indeed what's going on with the newly discovered galaxy, which is known as WISE J224607.57-052635.0, it raises an interesting question: How did the supermassive black hole get so big, so fast? After all, astronomers are seeing the object as it existed 12.5 billion years ago, when the universe was just 1.3 billion years old. [Images: Black Holes of the Universe]
The black hole may simply have been born big, researchers said.
"How do you get an elephant?" study co-author Peter Eisenhardt, of NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, said in a statement. "One way is start with a baby elephant."
But there are other possible explanations as well.
"Another way for a black hole to grow this big is for it to have gone on a sustained binge, consuming food faster than typically thought possible," said study lead author Chao-Wei Tsai, also of JPL. "This can happen if the black hole isn't spinning that fast."
The feeding rates of black holes are limited by the light emitted by superheated infalling material, which pushes away surrounding gas. The more slowly the black hole spins, the less future food it blasts away into space, researchers explained.
Such supermassive black holes "could be gorging themselves on more matter for a longer period of time," said co-author Andrew Blain, of the University of Leicester in the United Kingdom. "It's like winning a hot-dog-eating contest lasting hundreds of millions of years."
NASA's Wide-field Infrared Survey Explorer (WISE) spacecraft — for which Eisenhardt serves as project scientist — spotted WISE J224607.57-052635.0 along with 19 other "extremely luminous infrared galaxies," or ELIRGs. The powerful light from the ELIRGs' cores heated up surrounding dust clouds, which then emitted infrared radiation that WISE detected.
"We found in a related study with WISE that as many as half of the most luminous galaxies only show up well in infrared light," Tsai said.
The new study appears in the May 22 issue of The Astrophysical Journal.
Best Space Stories of the Week – May 24, 2015
The U.S. Air Force's X-37B space plane launched on another mystery mission, Russia's Proton rocket failed during a satellite launch and astronomers found the most luminous galaxy in the universe. Here's a look at Space.com's top stories of the week.
Mysterious X-37B military space plane launches again
The U.S. Air Force's robotic X-37B soared into orbit on its fourth mystery mission Wednesday (May 20) in a launch that also lofted the Planetary Society's LightSail solar-sailing craft.
Another Russian rocket failure
A Russian-built Proton rocket failed during a communications satellite launch over the weekend, dealing another blow to the nation's space program.
Astronomers find the most luminous galaxy in the universe
A newfound galaxy is the most luminous one known in the universe, blazing more brightly than 300 trillion suns. [Full Story: Brightest Galaxy in Universe Found]
25th anniversary of Hubble's first photo
NASA's Hubble Space Telescope may have launched 25 years ago last month, but Wednesday (May 20) marked another big anniversary for the famous observatory — a quarter-century since it took its first photo. [Full Story: Hubble Telescope Opened Its Space Eyes 25 Years Ago Today (Photo)]
2013 Chinese rocket launch may have been anti-satellite test
The U.S. Defense Department is suggesting that the May 2013 launch of a Chinese rocket that it branded at the time as suspicious was a test of a technology designed to counter or destroy satellites in geosynchronous orbit. [Full Story: Pentagon Says 2013 Chinese Launch May Have Tested Antisatellite Technology]
Another 'golden record?'
NASA's New Horizons Pluto probe may end up with one final mission after its work exploring the outer solar system is done — carrying a message to advanced alien civilizations. [Full Story: NASA Pluto Probe May Carry Crowdsourced Message to Aliens]
Solar-sailing cubesat's orbital trial set to begin
The nonprofit Planetary Society's LightSail spacecraft, which launched Wednesday (May 21), will conduct an orbital test mission that aims to help pave the way for future solar-sailing vessels.
Rosetta sees 'balancing rocks' on comet
The European Space Agency's Rosetta spacecraft spotted three boulders, each balancing on a small contact area, on the surface of Comet 67P/Churyumov-Gerasimenko.
Space weather and alien life
Earth regularly endures violent ejections of material from the sun, but could similar eruptions in other solar systems make alien planets inhospitable to life?
New insights into supernovas
Debris blown off a dying star collided with its companion, creating a blast of ultraviolet radiation that is helping scientists to better understand the evolution of one of the key tools to measure the expansion of the universe.
Dragon returns to Earth
SpaceX's robotic Dragon capsule returned to Earth Thursday (May 21), wrapping up the private spaceflight company's sixth cargo mission to the International Space Station.
Mysterious X-37B military space plane launches again
The U.S. Air Force's robotic X-37B soared into orbit on its fourth mystery mission Wednesday (May 20) in a launch that also lofted the Planetary Society's LightSail solar-sailing craft.
Another Russian rocket failure
A Russian-built Proton rocket failed during a communications satellite launch over the weekend, dealing another blow to the nation's space program.
Astronomers find the most luminous galaxy in the universe
A newfound galaxy is the most luminous one known in the universe, blazing more brightly than 300 trillion suns. [Full Story: Brightest Galaxy in Universe Found]
25th anniversary of Hubble's first photo
NASA's Hubble Space Telescope may have launched 25 years ago last month, but Wednesday (May 20) marked another big anniversary for the famous observatory — a quarter-century since it took its first photo. [Full Story: Hubble Telescope Opened Its Space Eyes 25 Years Ago Today (Photo)]
2013 Chinese rocket launch may have been anti-satellite test
The U.S. Defense Department is suggesting that the May 2013 launch of a Chinese rocket that it branded at the time as suspicious was a test of a technology designed to counter or destroy satellites in geosynchronous orbit. [Full Story: Pentagon Says 2013 Chinese Launch May Have Tested Antisatellite Technology]
Another 'golden record?'
NASA's New Horizons Pluto probe may end up with one final mission after its work exploring the outer solar system is done — carrying a message to advanced alien civilizations. [Full Story: NASA Pluto Probe May Carry Crowdsourced Message to Aliens]
Solar-sailing cubesat's orbital trial set to begin
The nonprofit Planetary Society's LightSail spacecraft, which launched Wednesday (May 21), will conduct an orbital test mission that aims to help pave the way for future solar-sailing vessels.
Rosetta sees 'balancing rocks' on comet
The European Space Agency's Rosetta spacecraft spotted three boulders, each balancing on a small contact area, on the surface of Comet 67P/Churyumov-Gerasimenko.
Space weather and alien life
Earth regularly endures violent ejections of material from the sun, but could similar eruptions in other solar systems make alien planets inhospitable to life?
New insights into supernovas
Debris blown off a dying star collided with its companion, creating a blast of ultraviolet radiation that is helping scientists to better understand the evolution of one of the key tools to measure the expansion of the universe.
Dragon returns to Earth
SpaceX's robotic Dragon capsule returned to Earth Thursday (May 21), wrapping up the private spaceflight company's sixth cargo mission to the International Space Station.
Sunday, May 24, 2015
India OKs Budget for Building, Launching 15 PSLV Rockets by 2020
House Approves Commercial Space Bill
ViaSat Sees Falcon Heavy as Pacing Item in Growth Plans
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