Archive for November 2011

NASA’s Most Adorable Model Spaceships


Apollo Lunar Lander 1961

Apollo Lunar Lander 1961

Just like the wooden toys your parents probably played with, the early lunar excursion model shown above is adorably simplistic. In some ways it might even be cuter than the more advanced models at the beginning of this gallery.

The early models of a 1961 lunar vehicle and a 1962 Apollo re-entry vehicle below are also lovably simple.

Images: NASA

Article source: http://www.wired.com/wiredscience/2011/11/adorable-model-spaceships/?pid=2551&pageid=87874&viewall=true

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NASA Selects 300 Small Business Research And Technology Projects

/PRNewswire-USNewswire/ — NASA has selected 300 small business proposals to enter into negotiations for possible contract awards through the agency’s Small Business Innovation Research (SBIR) and the Small Business Technology Transfer (STTR) programs.

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These competitive awards-based programs encourage U.S. small businesses and research institutions to engage in federal research, development and commercialization. The programs enable teams to explore technological potential while providing the incentive to profit from new commercial products and services.

The SBIR program selected 260 proposals, which have a combined value of approximately $33 million, for negotiation of Phase I feasibility study contracts. The STTR program selected 40 proposals, with a combined value of approximately $5 million, for negotiation of Phase I contracts.

“NASA’s partnerships with small businesses and universities through these programs brings space technologies to the marketplace, helping start-ups and small businesses create new jobs and grow our economy while meeting NASA’s current and future mission needs,” said Michael Gazarik, director of NASA’s Space Technology. “Breakthroughs in technology for space exploration create the foundation for new industries. We’re excited to work with these new partners and look forward to seeing their technologies mature into commercially viable products.”

The SBIR and STTR programs address specific technology gaps in NASA missions, while striving to complement other agency research investments. Program results have benefited many NASA efforts, including modern air traffic control systems, Earth-observing spacecraft, the International Space Station and the Mars rovers.

Innovative research areas among proposals include:

  • Improved technologies related to in-flight airframe and engine icing hazards for piloted and drone vehicles to prevent encounters with hazardous conditions and mitigation of their effects when they occur
  • Design of electronics, hardened for radiation and thermal cycling, which are capable of enduring the extreme temperature and radiation environments of deep space, and the lunar and Martian surfaces
  • Development of small, low-cost remote sensing and in situ instruments to enable science measurement capabilities with smaller or more affordable spacecraft that meet multiple mission needs while making the best use of limited resources
  • Innovative research in the areas of positioning, navigation and timing that will enable accurate and precise determination of location and orientation of spacecraft to allow corrections to course, orientation and velocity to attain a desired destination

The highly competitive programs are based on a three-phase award system. Phase I is a feasibility study to evaluate the scientific and technical merit of an idea. Awards are typically for six months for the SBIR contracts and 12 months for the STTR contracts, in amounts up to $125,000. Firms successfully completing Phase I are eligible to submit Phase II proposals, expanding on the results of Phase I. Phase III includes commercialization of the results of Phase II, and requires the use of private sector or non-SBIR federal funding as innovations move from the laboratory to the marketplace.

The selected SBIR proposals were submitted by 196 small, high technology firms in 37 states. The selected STTR proposals were submitted by 36 small high technology firms in 13 states. As part of the STTR program, the firms proposed to partner with 34 universities or research institutions in 16 states.

NASA received 1,878 qualified Phase I proposals. The criteria used to choose these selected proposals included technical merit and feasibility; experience, qualifications and facilities; effectiveness of the work plan; and, commercial potential and feasibility.

NASA’s Ames Research Center at Moffett Field, Calif., manages the SBIR program for the agency’s Space Technology Program. NASA’s 10 field centers manage individual projects.

For a complete list of selected companies, visit:

http://sbir.nasa.gov

For more information about NASA’s Office of the Chief Technologist and the agency’s Space Technology Program, visit:

http://www.nasa.gov/oct

SOURCE NASA

Article source: http://www.sacbee.com/2011/11/29/4087742/nasa-selects-300-small-business.html

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NASA mini-sat parachutes to a halt in space, prangs into atmos

NASA has successfully tested an extraterrestrial rubbish collector that could sweep up the star system’s space debris.

The agency’s NanoSail-D is a teeny satellite that deployed the first-ever solar sail in low-Earth orbit and sailed around the planet for more than 240 days.

The sail is NASA’s idea for cleaning up decommissioned satellites and space junk by floating it gently towards Earth and then annihilating it in the atmosphere.

The agency sent up the nanosatellite as a payload on FASTSAT on 19 November last year to test the low mass, high surface area sail.

“The NanoSail-D mission produced a wealth of data that will be useful in understanding how these types of passive deorbit devices react to the upper atmosphere,” said Joe Casas, FASTSAT project scientist at NASA’s Marshall Space Flight Center.

Scientists are still analysing the data from the mission, but early indications are that the sail works as the boffins hoped.

“The final rate of descent depended on the nature of solar activity, the density of the atmosphere surrounding NanoSail-D and the angle of the sail to the orbital track,” principal investigator Dean Alhorn said. “It is astounding to see how the satellite reacted to the sun’s solar pressure. The recent solar flares increased the drag and brought the nanosatellite back home quickly.”

And of course, the NanoSail-D did burn up on re-entry, exactly as it was intended to do, which is a fairly good sign as well. ®

Article source: http://go.theregister.com/feed/www.theregister.co.uk/2011/11/30/nasa_nanosail_space_debris_collector/

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NASA wants space washing machine for ISS, Mars bases

NASA have moved at last to tackle the problem of dirty astronauts by commissioning a microwave with air-jets to clean underwear in space.

There are no washing machines on the International Space Station so grime-encrusted nauts will wear underwear for 3-4 days and other items of clothing for months, before disposing of the dirty laundry by hurling it into the atmosphere to burn up in old Progress cargo capsules, attempting to wash it in a plastic bag or even – yuck – using it to grow plants in.

The costs of sending anything into space – between $5,000 and $10,000 per 500g – limits the amount of clean knickers that can be sent up in the first place.

NASA have selected small disinfectant business UMPQUA to make a prototype of a low-water, low-power washing machine that could enable the laundry to be done 250 miles above the earth’s surface – or much further afield, on deep space craft or in bases on the Moon or Mars. The new NASA research contract is to produce:

Flight Hardware for long duration human missions beyond low Earth orbit … The system is suitable for use in any long term space mission where resupply logistics preclude routine delivery of fresh crew clothing and removal of disposable clothing articles. While the proposed laundry system is microgravity compatible, the system will be completely functional in reduced gravity environments.

The machine proposed by Oregon-based company would use jets of vapour, air and microwave rays to clean clothes. The proposal indicate that it achieves “greatly enhanced softness” over the traditional low-water vacuum pressing methods.

The laundry microwaves could be useful on Earth too the manufacturers suggest, saying they’d work well in isolated military outposts, research stations and on ships.

UMPQUA also have a second potential contract with NASA – for an efficient poo-burner or a Highly Efficient Fecal Waste Incinerator. ®

Article source: http://www.theregister.co.uk/2011/11/30/astronauts_to_get_clean_underwear/

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NASA Recognizes Raytheon as JPL Large Business Prime Contractor of the Year

DULLES, Va., Nov. 30, 2011 /PRNewswire via COMTEX/ –
Raytheon Company


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has been recognized as a Large Business Prime Contractor of the Year for its contributions in support of NASA’s overall small business program. As part of this year’s NASA Small Business Symposium, Raytheon received the Jet Propulsion Laboratory’s 2011 Large Business Prime Contractor of the Year Award. The award was presented to company representatives at NASA’s Small Business Symposium and Awards Ceremony held Nov. 3 in Dulles, Va.

For the past 13 years, Raytheon has supported JPL in designing, developing and operating complex science, data and advanced information systems.

“Our small business partners play an important role in our success delivering agile, flexible and innovative solutions that help solve JPL’s complex mission challenges,” said Ron Stefano, vice president of Mission Operations Solutions for Raytheon’s Intelligence and Information Systems business. “This award recognizes Raytheon as an incubator of small businesses, offering maximum opportunities for small and disadvantaged companies to contribute and succeed within our program, JPL and NASA.”

To be considered for the Large Business Prime Contractor of the Year Award, contractors must be nominated by individual NASA centers. Selection criteria for the large business prime contractor category include performing well on NASA contracts; demonstrating overall sound small business programs; meeting or exceeding small business requirements; using small business contractors to perform some technical tasks required by the contract during contract execution; and sponsoring and participating in outreach activities.

About Raytheon

Raytheon Company, with 2010 sales of $25 billion, is a technology and innovation leader specializing in defense, homeland security and other government markets throughout the world. With a history of innovation spanning 89 years, Raytheon provides state-of-the-art electronics, mission systems integration and other capabilities in the areas of sensing; effects; and command, control, communications and intelligence systems, as well as a broad range of mission support services. With headquarters in Waltham, Mass., Raytheon employs 72,000 people worldwide. For more about Raytheon, visit us at
www.raytheon.com and follow us on Twitter at @raytheon.

Media ContactRoela Santos571.250.1106iispr@raytheon.com

SOURCE Raytheon Company

Copyright (C) 2011 PR Newswire. All rights reserved

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Article source: http://www.marketwatch.com/story/nasa-recognizes-raytheon-as-jpl-large-business-prime-contractor-of-the-year-2011-11-30

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NASA’s Fla. Visitor Center Clearing Way for Shuttle Arrival


A space shuttle launches into space from NASA's Kennedy Space Center in Florida.


The test shuttle Enterprise made its first appearance mated to supportive propellant containers and boosters as it was rolled from the Vehicle Assembly Building at Kennedy Space Center en route to the launch pad, some 3.5 miles away, on May 1, 1979. Enter


Take a look at the crewed spaceships that have launched astronauts and cosmonauts into space during the first 50 years of human spaceflight in this SPACE.com infographic.



Collectspace




Cranes remove a full-size, 149-foot-long, space shuttle solid rocket booster, or SRB, from NASA’s Kennedy Space Center Visitor Complex in Florida to make way for a new exhibit featuring space shuttle Atlantis, which is currently undergoing preparations to

Cranes remove a full-size, 149-foot-long, space shuttle solid rocket booster, or SRB, from NASA’s Kennedy Space Center Visitor Complex in Florida to make way for a new exhibit featuring space shuttle Atlantis, which is currently undergoing preparations to go on public display.
CREDIT: NASA/Jim Grossmann


Construction workers at NASA’s Kennedy Space Center Visitor Complex in Florida began clearing a path Tuesday (Nov. 29) for the arrival of the space shuttle Atlantis, which is slated to go on display there in 2013.

Employing a pair of large cranes, workers lowered the first of two 100,000-pound (45,359-kilogram) solid rocket boosters (SRBs) off of an exhibit stand and onto a transporter.

Over the next couple of days, construction crews will remove the second booster and an 87,000-pound (39,462-kg) external tank that, for more than a decade, has been on prominent display at the visitor complex.

“The SRBs were put on display in Shuttle Plaza in 1994, and that was followed by the external tank in 1997,” visitor complex spokesperson Andrea Farmer said in an interview with collectSPACE.com.

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The boosters and tank, which are representative of the propulsion components that launched the space shuttle orbiters throughout the 30-year program from 1981 to 2011, are a mixture of real and replica hardware. [NASA's Space Shuttle Program in Pictures: A Tribute]

“The external tank was a ‘fit-check’ tank, a full-size mockup, that came from the Stennis Space Center [in Mississippi],” Farmer said. “For the SRBs, the aft skirts and nose cones are fiberglass, and then for the four segments [in between], two are steel and two of them are filament.”

Arranging for Atlantis

The twin 149-foot (45-meter) long boosters and 154-foot (47-m) long external tank are being trucked to a nearby staging lot until their future can be determined.

“They are right now going to the [Kennedy Space Center's] transfer and disposal area,” Farmer said. “I believe they may ultimately be given to another location.”

Among the potential recipients was Space Center Houston, the visitor center for NASA’s Johnson Space Center in Texas. The center was unable to take the boosters and tank, but will be receiving the next large item to move from Shuttle Plaza: a full-scale shuttle mockup.

The Explorer replica with its gantry walkway that allows visitors to tour inside the orbiter will be similarly dismantled and hoisted out of the way, so that construction can begin on a new building to house the real shuttle Atlantis. A date has not been set yet for Explorer to ship to Houston.

Ground-breaking for the planned 65,000 square-foot, $100 million exhibition facility to display Atlantis is scheduled for early next year. Atlantis, which flew NASA’s 135th and final space shuttle mission in July, will be rolled down the road from the Kennedy Space Center’s Vehicle Assembly Building in November 2012, and, as is currently proposed, will be ready for public display by July 2013.

Space shuttles on display

Atlantis is one of four orbiters NASA is retiring to museums. Fleet leader Discovery will be delivered to the Smithsonian’s National Air and Space Museum in April 2012 for display at the Steven F. Udvar-Hazy Center in Chantilly, Va.

The prototype shuttle Enterprise, which since 2003 has been housed at the Udvar-Hazy Center, will head north to New York City to the Intrepid Sea, Air and Space Museum. The Intrepid officially took over ownership of Enterprise on Nov. 22.

Endeavour, the youngest of the orbiters, was made the property of the California Science Center on Oct. 14, when the Los Angeles museum held a high-profile title transfer ceremony. Endeavour is scheduled to touchdown on the Pacific coast in the fall of 2012.

NASA engineers have been working since the end of the shuttle program came to prepare the orbiters for public display. In addition to saving hardware from each for possible future reuse, workers have also been making sure that the orbiters are safe for the public by removing fuel and other hazardous systems.

Visit collectSPACE.com to view a photo gallery of the solid rocket boosters and external tank being removed from NASA’s Kennedy Space Center Visitor Complex in Florida.

Follow collectSPACE on Facebook and Twitter @collectSPACE and editor Robert Pearlman @robertpearlman. Copyright 2011 collectSPACE.com. All rights reserved.

Article source: http://www.space.com/13779-space-shuttle-display-preparation-florida-visitor-center.html

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CREDIT: Aurore Simonnet, NASA E/PO, Sonoma State University


What Caused the Christmas 2010 Space Explosion? Dueling Theories Animated


Illustration of a young black hole similar to two distant dust-free quasars.


Top 10 Greatest Explosions Ever




GRB 101225A

Artist’s impression of the model suggested for GRB 101225A
CREDIT: Aurore Simonnet, NASA E/PO, Sonoma State University


The Christmas sky last year was lit up by an extraordinarily powerful and mysteriously long-lasting explosion in space that scientists now suggest was a comet smacking into a dense star or a peculiar supernova death.

Radiation from gamma-ray bursts, the most powerful explosions ever seen in the universe, strikes Earth’s atmosphere from random directions in space about twice a day. These bursts can be roughly divided into two kinds, ones lasting less than two seconds, and ones lasting up to minutes.

However, the strange gamma-ray burst detected on Christmas Day 2010 by NASA’s Swift satellite lasted at least half an hour.

Scientists think shorter gamma-ray bursts are generally caused by merging neutron stars — dead stars made up of super-dense neutron matter. Longer bursts are typically thought to originate from hypernovas, in which giant stars that explode as incredibly powerful supernovas spew two opposing jets of energy as they die; we see them head-on as bursts.  [Photos of Great Supernova Explosions]

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However, researchers suspect a number of mysterious events of completely different origins could mimic gamma-ray bursts. Such might be the case with the Christmas burst, formally known as GRB 101225A.

Tidal Disruption of a Minor Body by a Neutron Star

“It is important to understand gamma-ray bursts to get some global picture of the life and death of massive stars,” said astronomer Christina Thöne of the Institute of Astrophysics in Andalusia, Spain. “Massive stars are ultimately the ones that decide what elements are present, created and recycled in the gas in our and any other galaxy.”

Now scientists have two competing explanations for the Christmas burst: a cosmic impact on a dead star in our galaxy, or a peculiar supernova in a distant galaxy.

Based on the length and brightness of the burst, astrophysicist Sergio Campana at the Astronomical Observatory of Brera in Italy and his colleagues suggest that a minor body such as a comet or asteroid crashed into a neutron star.

“I think this is the discovery of a completely new astrophysical phenomenon that has not been envisaged before,” Campana told SPACE.com.

Specifically, the astrophysicists suggest that the gravity of a neutron star ripped apart a 500 trillion-metric-ton chunk of matter that had been passing within 3,000 miles (5,000 kilometers) of it. The debris fell onto the star and exploded as energy.

“If tidal disruption of minor bodies around neutron stars is really happening, I would expect GRB 101225A not [to] be unique,” Campana said. “I would like to start searching for this kind of event either in existing data sets or with new observations.”

On the other hand, Thöne and her colleagues say an oddball supernova might be to blame. They propose that the Christmas explosion occurred when a neutron star combined with a helium star, a type of super-giant star rich in helium. When the neutron star and the helium star’s core merged, the result would have been a black hole or a highly magnetic neutron star known as a magnetar, either of which might power long bursts of radiation. The helium star would have shed its outer layers first, surrounding the duo in an envelope of gas — which could explain unusual details seen in the burst’s light.

Christmas Burst in the Style of Vincent van Gogh

To test which explanation might be correct, scientists must figure out if the explosion took place in our galaxy or not. Thöne and her colleagues observed signs that it took place in a distant galaxy, but the evidence is ambiguous, they noted. Further observations with the Hubble Space Telescope and other observatories could help solve the mystery.

“We hope to settle the question on the right model sometime in the future,” Thöne said. “Hopefully sometime next year we will know more.”

The scientists detailed their findings in two papers published in the Dec. 1 issue of the journal Nature.

Follow SPACE.com for the latest in space science and exploration news on Twitter @Spacedotcom and on Facebook.

Article source: http://www.space.com/13773-christmas-space-explosion-gamma-ray-burst-explanations.html

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NASA, Library of Congress Establish Honorary Astrobiology Chair


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WASHINGTON, Nov. 30, 2011 /PRNewswire-USNewswire/ — NASA and the Library of Congress have established the Baruch S. Blumberg NASA-Library of Congress chair in Astrobiology at the Library’s scholarly research organization, the John W. Kluge Center in Washington. The chair is named for the late Nobel Laureate and founding director of the NASA Astrobiology Institute, Baruch “Barry” Blumberg.

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Astrobiology is the study of the origins, evolution, distribution and future of life in the universe.  Astrobiology addresses three fundamental questions: How did life begin and evolve? Is there life elsewhere? What is the future of life on Earth and beyond?

Blumberg was awarded the 1976 Nobel Prize in physiology or medicine for discovery of the Hepatitis B virus and development of a vaccine to prevent Hepatitis B infection. He served as the NASA Astrobiology Institute director from 1999 to 2002. The institute’s mission is to promote interdisciplinary research in astrobiology, train the next generation of astrobiologists, provide scientific and technical leadership for NASA space missions, and share astrobiology’s discoveries with learners of all ages.

“Relationships with external research organizations are critical to NASA’s success as a leader in science and technology,” NASA Chief Scientist Waleed Abdalati said. “Opportunities like the Blumberg chair really help strengthen those relationships.”

At the Library of Congress, Blumberg was a founding member of the Scholar’s Council, a 12-member group of distinguished scholars which advises the Librarian of Congress on matters of scholarship.

“This collaboration between NASA and the Library of Congress is an unparalleled opportunity to broaden public discourse on the intersection of astrobiology and its societal implications,” said NASA Astrobiology Institute Director Carl Pilcher of NASA’s Ames Research Center at Moffett Field, Calif. “Astrobiology uses the tools of modern science to address questions with philosophical, ethical and theological implications. The chair will be able to use the vast resources of the Library of Congress to explore these issues.”

An annual international competition will be held to select a chairperson, who will serve in residence at the Kluge Center for up to one year, beginning in fall 2012.

Likely research topics include the societal implications of discovering life beyond Earth, exploring whether life is rare in the universe, or the ways astrobiology influences and is influenced by culture.

“For many years, Barry worked in his inimitable and energetic way to connect scholars from astrobiology with those studying the humanities,” said Librarian of Congress James H. Billington. “We are delighted to be moving forward with this important opportunity to examine the societal implications of this frontier field.”

Applications for the chair will be solicited by the Library of Congress and reviewed by a panel jointly established by the library and NASA. The first selection will be announced in spring 2012.

For more information about the NASA Astrobiology Program and the NASA Astrobiology Institute, visit:

http://astrobiology.nasa.gov

For more information about the Kluge Center of the Library of Congress, visit:

http://www.loc.gov/loc/kluge

SOURCE NASA

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Article source: http://www.prnewswire.com/news-releases/nasa-library-of-congress-establish-honorary-astrobiology-chair-134762248.html

EMCORE Solar Panels Power NASA’s Mars Science Laboratory (MSL) Spacecraft on …

ALBUQUERQUE, N.M., Nov 30, 2011 (GlobeNewswire via COMTEX) –
EMCORE Corporation


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, a leading provider of compound semiconductor-based components and subsystems for the fiber optic and solar power markets, announced today that solar panels manufactured by EMCORE were successfully launched November 26, 2011 onboard the Mars Science Laboratory (MSL) spacecraft.

The panels, delivered earlier this year under contract with NASA’s Jet Propulsion Laboratory (JPL) Center in Pasadena, CA, will power the Mars Science Laboratory (MSL) spacecraft during its cruise stage to Mars. The spacecraft is designed to carry the MSL rover “Curiosity” and communicate with the entry vehicle that will carry the rover to the surface of the planet. The solar panels for this mission were designed and manufactured exclusively by EMCORE’s Photovoltaic Division, located in Albuquerque, NM.

“We are very proud to contribute to NASA’s latest mission to Mars and are committed to supporting NASA with other future missions,” said Christopher Larocca, Chief Operating Officer for EMCORE. “EMCORE has previously delivered, or is in the process of delivering, solar panels for several other NASA missions including the Lunar Atmosphere and Dust Environment Explorer (LADEE), Commercial Resupply Services (CRS) to the International Space Station, Lunar Reconnaissance Orbiter (LRO), and the Magnetospheric Multi-Scale (MMS) missions.”

EMCORE is a leading manufacturer of highly-efficient radiation-hard solar cells for space power applications. With a beginning-of-life (BOL) conversion efficiency nearing 30% and the option for a patented, onboard monolithic bypass diode, EMCORE’s industry leading multi-junction solar cells provide power to interplanetary spacecraft and earth orbiting satellites.

About EMCORE

EMCORE Corporation offers a broad portfolio of compound semiconductor-based products for the broadband, fiber optic, satellite and solar power markets. EMCORE’s Fiber Optic segment offers optical components, subsystems and systems for high-speed data and telecommunications networks, cable television (CATV) and fiber-to-the-premise (FTTP), as well as specialty photonics technologies for defense and homeland security applications. EMCORE’s Photovoltaic segment provides products for both satellite and terrestrial applications. For satellite applications, EMCORE offers high-efficiency Gallium Arsenide (GaAs) solar cells, Covered Interconnect Cells (CICs) and panels. For terrestrial applications, EMCORE is adapting its high-efficiency GaAs solar cells for use in solar concentrator systems. For further information about EMCORE, visit
http://www.emcore.com .

Forward–looking statements:

The information provided herein may include forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, as amended. Such statements include statements regarding the company’s expectations, goals or intentions, including, but not limited to, product features and their benefits, product quality and network growth. These forward-looking statements are based on management’s current expectations, estimates, forecasts and projections about the company and are subject to risks and uncertainties that could cause actual results and events to differ materially from those stated in the forward-looking statements. Risks and uncertainties that could cause the company’s actual results to differ from those set forth in any forward-looking statement are discussed in more detail under “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the company’s SEC filings. Forward-looking statements contained in this press release are made only as of the date hereof, and the company undertakes no obligation to update or revise the forward-looking statements, whether as a result of new information, future events or otherwise.

This news release was distributed by GlobeNewswire,
www.globenewswire.com

SOURCE: EMCORE Corporation



        CONTACT: EMCORE Corporation
        Mark Weinswig
        Chief Financial Officer
        (505) 332-5000
        investor@emcore.com
        TTC Group
        Victor Allgeier
        (646) 290-6400
        vic@ttcominc.com
        


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Article source: http://www.marketwatch.com/story/emcore-solar-panels-power-nasas-mars-science-laboratory-msl-spacecraft-on-its-cruise-stage-to-mars-2011-11-30

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Planets Ranked in Order of Habitability

Now awaiting space-condo booms in Gliese 581 system, Mars.

An American study has ranked planets according to the likelihood that they can sustain life, with our neighbour, Mars, ranking pretty close to the top. The study, undertaken by researchers at the University of Washington, used two indices to measure a slew of planet’s habitability. The first index, the Earth Similarity Index, gave a score to planets based on, well, how similar they are to Earth, taking into account the planets’ size, mass, and temperature. The other index, the Planetary Habitability Index, examined whether the elements required for life – oxygen, nitrogen, water, and more – were present, how much energy the planet had, and the make-up of the planets’ surfaces. After assigning scores, the team determined that Gliese 581g, a planet in the Gliese 581 system, was the most likely to support life. Two other planets in the Gliese system, Gliese 581d and Gliese 581c, came in second and third. The Gliese system is about 20 light years away, so getting there might be a bit difficult once humanity inevitably ruins this planet, but Mars, which is just down the planetary street, relatively, was deemed the fourth most habitable planet. Mercury came in fifth, the moon seventh, and Venus 10th, while the Gliese system had two more entrants at eighth and ninth.

Article source: http://www.themarknews.com/articles/7634-planets-ranked-in-order-of-habitability

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