Wednesday 21 November 2012

Space News : Born-again star foreshadows fate of Solar System

Born-again star foreshadows fate of Solar System
Astronomers have found evidence for a dying Sun-like star coming briefly back to life after casting its gassy shells out into space, mimicking the possible fate our own Solar System faces in a few billion years.
This new picture of the planetary nebula Abell 30, located 5500 light-years from Earth, is a composite of visible images from the NASA/ESA Hubble Space Telescope and X-ray data from ESA’s XMM-Newton and NASA’s Chandra space telescopes.
‘Planetary nebula’ is the name given to the often-concentric shells of stellar material cast into space by dying stars. To astronomers of the 18th century, these objects looked like the colourful ‘blob’ of a planet through their telescopes, and the name stuck.
Astronomers now know that as a star with less than eight times the mass of the Sun swells into a red giant towards the end of its life, its outer layers are expelled via pulsations and winds. Ultraviolet radiation shining out from the stripped-down hot stellar core then lights up the ejected shells, resulting in intricate artworks that can be seen by modern telescopes.
The star at the heart of Abell 30 experienced its first brush with death 12 500 years ago – as seen from Earth – when its outer shell was stripped off by a slow and dense stellar wind.
Optical telescopes see the remnant of this evolutionary stage as a large, near-spherical shell of glowing material expanding out into space. Then, about 850 years ago, the star suddenly came back to life, coughing out knots of helium and carbon-rich material in a violent event.
The star’s outer envelope briefly expanded during this born-again episode, but then very rapidly contracted again witin 20 years. This had the knock-on effect of accelerating the wind from the star to its present speed of 4000 kilometres per second – over 14 million kilometres per hour.
As this fast stellar wind catches up and interacts with the slower wind and clumps of previously ejected material, complex structures are formed, including the delicate comet-like tails seen near the central star in this image. The stellar wind bombarding dense clumps of material provides a chilling look at the possible fate of Earth and its fellow planets in our own Solar System in a few billion years’ time.
When our Sun emits its final gasps of life at the heart of a planetary nebula, its strong stellar wind and harsh radiation will blast and evaporate any planets that may have survived the red giant phase of stellar evolution.
If any distant civilisation is watching with high-power telescopes at the time, they might see the glowing embers of the planets light up in X-rays as they are engulfed in the stellar wind. 

Space News : Lunar eclipse expected on Nov 28

Lunar eclipse expected on Nov 28
A penumbral lunar eclipse will occur on November 28 (Wednesday), the weathermen said. "A penumbral lunar eclipse occurs when the moon only passes through the penumbra (partial shadow) of the earth without entering the umbra (total shadow)," Scientific Officer of the Hong Kong Observatory Leung Yin-kong explains. "During the event, the moon will become only slightly dimmer... Most places with an unobstructed view to the east...

Space News : Now, get an SMS and spot NASA’s ISS



Now, get an SMS and spot NASA’s ISS
 You can now spot the International Space Station (ISS) commanded by Indian—American astronaut Sunita Williams without a telescope as it passes your house, thanks to NASA’s new SMS service.
“Spot the Station” will send you a text message as the ISS passes over your house, to help you see the object.
Third brightest
The International Space Station is the third brightest object in the sky after the Sun and the Moon, however, most people still cannot tell where the orbiting laboratory is.NASA will send an email or text message to those who sign up for the service a few hours before they will be able to see the space station, the US space agency said in a statement. Once you know where to look, people should be able to see it easily — even without a telescope.
The service was launched to celebrate the 12th anniversary of crews living and working aboard the station presently commanded by Williams. “It’s really remarkable to see the space station fly overhead and to realise humans built an orbital complex that can be spotted from Earth by almost anyone looking up at just the right moment,” said William Gerstenmaier, NASA’s associate administrator for human exploration and operations.

Space News : Astronomers Find 'Homeless' Planet Drifting Through Space


Astronomers Find 'Homeless' Planet Drifting Through Space
Astronomers have discovered a planet drifting through space, not orbiting a star. Such cosmic wanderers are believed to be common in the universe. But the new-found planet's proximity to our solar system - just 100 light years, or 1000 trillion kilometers, away - and the absence of any nearby stars have allowed the international [Canadian and European] team to study the planet's properties in greater detail than ever before.
Because it seems to be travelling with a group of about 30 young stars, researchers were able to determine it was the same age - between 50 and 120 million years old. Then, using computer models of planet evolution, they report it has a temperature of about 400 degrees Celsius, and a mass four to seven times that of Jupiter.
These free-floating objects can help astronomers understand more about how planets and stars form and behave. Rogue planets may have coalesced from the same dust and debris as normal planets before being ejected from their solar systems, or they may be brown dwarfs - stars that never grew large enough to trigger the reaction that causes starlight.
Lead researcher, Philippe Delorme of the University of Grenoble, said "If this little object is a planet that has been ejected from its native system, it conjures up the striking image of orphaned worlds, drifting in the emptiness of space."

Space News : China's Chang'e-3 to land on moon next year

China's Chang'e-3 to land on moon next year
The Chang'e-3 would probe and explore the lunar surface. 
China will launch its latest lunar satellite in the second half of next year, the Chang'e-3, paving the way for a future manned moon landing, a senior space industry official said on Saturday.
Ma Xingrui, general manager of the China Aerospace Science and Technology Corporation, said the mission will see the lunar exploration orbiter's first ever soft-landing on the moon.Ma said the Chang'e-3 would probe and explore the lunar surface, and carry out various environmental and space technology related tests. It will spend 15 days on the moon to lay the foundations of what he called further deep space exploration.
China launched Chang'e-1 in 2007 and Chang'e-2 in 2010. The first retrieved lunar data and carried out an initial mapping of the surface, while the second created a full high-resolution map of the moon and high-definition images of the lunar landscape.
After its sampling of the moon's surface, the Chang'e-3 is expected to be retrieved in 2017, according to reports.

GIS NEWS : Celtra Unveils Industry-First Store Locator With Automated Location Geocoding for Mobile Ads

Celtra Unveils Industry-First Store Locator With Automated Location Geocoding for Mobile Ads
-- Celtra Inc., the industry leader for mobile rich media advertising and analytics, today announced the launch of the industry-first self-service store locator feature, a powerful new mobile ad product that gives brands and retailers the ability to deliver a complete mobile shopping experience in time for the holidays.
 "Mobile rich media advertising is perfectly suited for mid-funnel marketing activities and finding a nearby store is one of its most popular and effective features," said Matevz Klanjsek, Celtra co-founder and Chief Product Officer. "Our data shows that more than 16 percent of users search for a local store within the ad. Celtra's new store locator with automated location geocoding allows advertisers to quickly and easily employ this powerful tool and effectively drive foot traffic to brick-and-mortar stores."
A recent "What Users Want Most From Mobile Sites" report from Google confirms that consumers are turning to mobile platforms more frequently during shopping experience with 76 percent of users wanting to find a company's location and operating hours from a mobile site.
"Mobile shopping is taking off, giving advertisers the opportunity to drive conversion by providing consumers with surrounding retail locations or businesses that carry the product or service that they want," said Jack Hallahan, Vice President of Mobile Innovations at Mojiva. "Celtra's self-service store locator cuts development costs by allowing us to quickly and easily create mobile rich media ads that engage millions of consumers and drive them to local storefronts."
"National brands and retailers are increasingly leveraging location to bolster their mobile ads and drive traffic to physical locations," said Jack Demetris, Vice President of Business Development at Theorem. "Celtra's AdCreator platform makes it easy for us to build immersive rich media experiences that influence shoppers at all stages of the purchase funnel from awareness to consideration to purchase."
Celtra's store locator empowers consumers to quickly search, display and manage a list of locations in rich media mobile ads. Advertisers can quickly populate their store locator content by uploading a simple excel file. Automated geocoding seamlessly translates addresses into map coordinates and locations can be displayed in map, or list views with a fully customizable user interface that matches the ad. Advertisers can also traffic their ads across the broadest list of premium publishers, ad networks, mediators, demand and supply side platforms. The solution also tracks audience engagement with the store locator in real time using AdCreator Analytics.
Celtra's AdCreator platform is used by 8 out of the top 10 media agencies as well as the top 25 global ad networks, 35 premium publishers and 10 mobile exchanges, DSP Platforms and ad servers. The solution provides unmatched mobile rich media campaign creation, optimization and measurement, allowing brands to adjust on the fly to maximize engagement with fans. The platform empowers advertisers to embed rich features into their campaigns like video, content and image galleries that capture users' attention and provides more opportunities for engagement. Celtra's Store Locator ad feature leverages the user's location to direct them to the nearest store to make a purchase. For more information on AdCreator, please visit: http://www.celtra.com/adcreator
About Celtra Inc.
Celtra Inc. is the global leader for rich media mobile advertising and analytics across mobile devices. AdCreator 3, which is used directly by top agencies, publishers and ad networks in more than 18 countries, is the only complete, SDK-agnostic platform for building, managing and tracking effective rich media mobile advertisements. Celtra's unparalleled HTML5 ad formats and features are optimized for different mobile platforms and devices ensuring flawless functionality and the best possible user experience. For more information, visit Celtra at www.celtra.com or @CeltraMobile on Twitter.

GIS NEWS:: Esri Supports Development of UCSB Ocean Use Application


Esri Supports Development of UCSB Ocean Use Application
— The University of California, Santa Barbara (UCSB), has now officially launched SeaSketch, an ocean planning tool supported by Esri, the world leader in GIS. Conservationists, planners, and ocean resource managers will use the GIS application and Esri's ArcGIS Online to plan sustainable ocean use management.
"Helping people make better decisions in the environmental space is extremely important to me," said Jack Dangermond, president, Esri. "Our support of the UCSB SeaSketch project is a component of the Esri Ocean GIS Initiative, which allows people to positively impact the future through a deeper, geographic understanding of the ocean."
Researchers from the UCSB McClintock Lab designed SeaSketch to study human impacts on the ocean environment and plan responsible resource management. An agency that buys a SeaSketch subscription from UCSB can set up an online workspace and invite planners and stakeholders to design and study plan elements such as marine protected areas, aquaculture sites, and permitted fishing.
ArcGIS Online, which is a cloud-based, collaborative content management system for maps, applications, data, and other geospatial information, plays a major role in SeaSketch. It enables project managers to discover an enormous amount of geospatial data that may be helpful for their projects. Because SeaSketch incorporates Esri's ArcGIS web development technology, project managers can easily move from ArcGIS environments into SeaSketch. Organizations can leverage existing investments in ArcGIS by directly pulling published map services into SeaSketch, ensuring the application uses the most current data available. Adding GIS tools and applications to SeaSketch extends its capabilities. For example, adding Esri and the National Oceanic and Atmospheric Administration's (NOAA) Benthic Terrain Modeler (BTM) gives users a set of geoprocessing tools to analyze benthic terrain and classify surficial seafloor characteristics.
The United Nations Environment Programme World Conservation Monitoring Centre (UNEP-WCMC) will use SeaSketch to facilitate dialog among businesses, organizations, and governments regarding the use of the high seas."SeaSketch is a great step forward in interactive marine spatial planning," said Damon Stanwell-Smith, acting head, marine assessment and decision support program of UNEP-WCMC. "Marine data can be complicated and complex to many people who need it. SeaSketch provides a friendly, intuitive tool to help people understand ocean resources and work together to create a plan."

NASA NEWS : NASA Mars Rover Opportunity Reveals Geological Mystery

NASA Mars Rover Opportunity Reveals Geological Mystery
Small spherical objects fill the field in this mosaic combining four images from the Microscopic Imager on NASA's Mars Exploration Rover Opportunity. Image credit: NASA/JPL-Caltech/Cornell Univ./ USGS/Modesto Junior College. 
NASA's long-lived rover Opportunity has returned an image of the Martian surface that is puzzling researchers. Spherical objects concentrated at an outcrop Opportunity reached last week differ in several ways from iron-rich spherules nicknamed "blueberries" the rover found at its landing site in early 2004 and at many other locations to date.
Opportunity is investigating an outcrop called Kirkwood in the Cape York segment of the western rim of Endeavour Crater. The spheres measure as much as one-eighth of an inch (3 millimeters) in diameter. The analysis is still preliminary, but it indicates that these spheres do not have the high iron content of Martian blueberries."This is one of the most extraordinary pictures from the whole mission," said Opportunity's principal investigator, Steve Squyres of Cornell University in Ithaca, N.Y.
"Kirkwood is chock full of a dense accumulation of these small spherical objects. Of course, we immediately thought of the blueberries, but this is something different. We never have seen such a dense accumulation of spherules in a rock outcrop on Mars."The Martian blueberries found elsewhere by Opportunity are concretions formed by action of mineral-laden water inside rocks, evidence of a wet environment on early Mars.
Concretions result when minerals precipitate out of water to become hard masses inside sedimentary rocks. Many of the Kirkwood spheres are broken and eroded by the wind. Where wind has partially etched them away, a concentric structure is evident.
Opportunity used the microscopic imager on its arm to look closely at Kirkwood. Researchers checked the spheres' composition by using an instrument called the Alpha Particle X-Ray Spectrometer on Opportunity's arm."They seem to be crunchy on the outside, and softer in the middle," Squyres said.
"They are different in concentration. They are different in structure. They are different in composition. They are different in distribution. So, we have a wonderful geological puzzle in front of us. We have multiple working hypotheses, and we have no favorite hypothesis at this time. It's going to take a while to work this out, so the thing to do now is keep an open mind and let the rocks do the talking."
Just past Kirkwood lies another science target area for Opportunity. The location is an extensive pale-toned outcrop in an area of Cape York where observations from orbit have detected signs of clay minerals. That may be the rover's next study site after Kirkwood. Four years ago, Opportunity departed Victoria Crater, which it had investigated for two years, to reach different types of geological evidence at the rim of the much larger Endeavour Crater.
The rover's energy levels are favourable for the investigations. Spring equinox comes this month to Mars' southern hemisphere, so the amount of sunshine for solar power will continue increasing for months."The rover is in very good health considering its 8-1/2 years of hard work on the surface of Mars," said Mars Exploration Rover Project Manager John Callas of NASA's Jet Propulsion Laboratory in Pasadena, Calif.
"Energy production levels are comparable to what they were a full Martian year ago, and we are looking forward to productive spring and summer seasons of exploration."

NASA NEWS: NASA marks 2 milestones in search for Earth-like planets

NASA marks 2 milestones in search for Earth-like planets
NASA's Kepler Space Telescope - which was launched March 6, 2009 to find potentially habitable, Earth-sized planets - has successful completed its 3 1/2- year prime mission and begins an extended mission that could last as long as four years. Kepler began the search for small worlds like our own on May 12, 2009, after two months of commissioning.
Scientists have used Kepler data to identify more than 2,300 planet candidates and confirm more than 100 planets. Kepler is teaching us the galaxy is teeming with planetary systems and planets are prolific, and giving us hints that nature makes small planets efficiently.
So far, hundreds of Earth-size planet candidates have been found as well as candidates that orbit in the habitable zone, the region in a planetary system where liquid water might exist on the surface of a planet. None of the candidates is exactly like Earth. With the completion of the prime mission, Kepler now has collected enough data to begin finding true sun-Earth analogs-Earth-size planets with a one-year orbit around stars similar to the sun.
"The initial discoveries of the Kepler mission indicate at least a third of the stars have planets and the number of planets in our galaxy must number in the billions," said William Borucki, Kepler principal investigator at NASA's Ames Research Center in Moffett Field, Calif. "The planets of greatest interest are other Earths and these could already be in the data awaiting analysis. Kepler's most exciting results are yet to come," he stated.NASA's Kepler Space Telescope searches for planet candidates orbiting distant suns, or exoplanets, by continuously measuring the brightness of more than 150,000 stars.

Friday 9 November 2012

Giant tracking station readies for operation


One of the world’s most sophisticated satellite tracking stations is nearing inauguration in Malargüe, Argentina, 1000 km west of Buenos Aires. The new station will ensure reliable communications with missions voyaging hundreds of millions of kilometres into our Solar System.
ESA’s new tracking station, near the town of Malargüe in Mendoza province, joins two existing stations in Spain and Australia to provide global coverage for the Agency’s deep-space missions.  
Deep Space Antenna 3 – or DSA 3 – will send commands, receive data and perform radiometric measurements with missions such as Mars Express, Venus Express, Rosetta, Herschel, Planck, Gaia, BepiColombo, ExoMars, Solar Orbiter and Juice.
With major construction complete, teams are preparing DSA 3 for hand-over to operations, formal inauguration late this year and entry in routine service early in 2013. 
First test signals received from Mars Express
The first test signals were received in June 2012 from Mars Express, over a distance of about 193 million km, proving that the station’s technology is ready for duty.
 “Initial in-service testing with the Malargüe station shows excellent results.” “Our initial in-service testing with the Malargüe station shows excellent results,” says Roberto Maddè, ESA’s project manager for DSA 3 construction.
“We have been able to quickly and accurately acquire signals from ESA and NASA spacecraft, and our station is performing better than specified.” Maddè says part of the reason for the excellent performance is the improved ultra-low-temperature amplifiers installed at the station, and also the fact that it’s located at 1500m altitude in the clear Argentinian desert air. 
Completing a trio of deep space stations
DSA 3 joins the Agency’s existing DSA 1 and DSA 2 stations in New Norcia, Western Australia, and Cebreros, Spain, respectively, to provide the third link in a global network that is controlled remotely by engineers at ESOC, ESA’s European Space Operations Centre, and Germany. 
Lifting the huge antenna dish into place 
Like the New Norcia and Cebreros stations, Malargüe is equipped with a giant 35 m-diameter dish antenna and super-sophisticated cryogenically cooled low-noise amplifiers to detect faint signals and operate at various power levels – up to 20 kW – to transmit commands.
The tracking capability of all three ESA deep space stations also provides support to partner agencies such as NASA and Japan’s JAXA, who likewise make their tracking networks available to ESA missions, helping to boost science data return for all.
The three are also equipped for radio science, which studies how matter, such as planetary atmospheres, affects the radio waves as they pass through. This can provide important information on the composition for the atmospheres around Mars, Venus or the Sun, for example.
Using galaxies to pin point satellite locations
The ESA stations can use the highly accurate ‘delta – Differential One-Way Ranging’ (delta-DOR) technique for very accurate locating and navigation of spacecraft in our Solar System. This sophisticated method uses quasi-stellar radio sources – very energetic and distant active galaxy centres – as calibration points to fix the location of a spacecraft to within a few metres. 
Boosting tracking capacity to support future missions
“The commissioning of this station into ESA´s deep-space network allows us to serve the most demanding scientific missions of ESA and provide the required communication capacity for transferring large volumes of scientific data from the sophisticated instruments onboard ESA spacecraft,” says Manfred Lugert, ESA’s Head of Ground Facilities Operations. 
“The design, development and construction of this station marks a huge success for ESA and our industrial partners,” says Juan Miro, ESA’s Head of Ground Systems Engineering. “It helps to confirm ESA as Europe’s top space research and development organisation.”

Nereidum Montes helps unlock Mars’ glacial past


On 6 June, the high-resolution stereo camera on ESA’s Mars Express revisited the Argyre basin as featured in our October release, but this time aiming at Nereidum Montes, some 380 km northeast of Hooke crater.
The stunning rugged terrain of Nereidum Montes marks the far northern extent of Argyre, one of the largest impact basins on Mars. Nereidum Montes stretches almost 1150 km and was named by the noted Greek astronomer Eugène Michel Antoniadi (1870–1944).
Based on his extensive observations of Mars, Antoniadi famously concluded that the ‘canals’ on Mars reported by Percival Lowell were, in fact, just an optical illusion.
Nereidum Montes perspective view
The images captured by Mars Express show a portion of the region, displaying multiple fluvial, glacial and wind-driven features. Extensive dendritic drainage patterns, seen towards the north (lower right side) of the first and topographic images, were formed when liquid water drained into deeper regions within the area.
On Earth, tree-like channels of this kind are usually formed by surface runoff after significant rainfall, or when snow or ice melts. Similar processes are thought to have occurred on Mars in the distant past, when scientists now know there to have been water on the surface of the Red Planet.
Several of the craters within the region, particularly in eastern parts (lower section) of the first image, show concentric crater fill, a distinctive martian process marked by rings of surface fluctuations within a crater rim.
The ratios between the diameter and depth of the filled craters suggest that there may still be water ice, possibly in the form of ancient glaciers, present below the dry surface debris cover.   
Nereidum Montes in context 
Scientists have estimated that the water-ice depth in these craters varies from several tens up to hundreds of metres. The largest crater on the south western side (top-left half) of the first and topographic images appears to have spilled out a glacier-like formation towards lower-lying parts of the region (shown as blue in the topographic image).
Topographical view
A smooth area to the east of (below) the glacial feature appears to be the youngest within the image, evidenced by an almost complete lack of cratering.
Another indication of subsurface water is seen in the fluidised ejecta blanket surrounding the crater at the northern edge (right-hand side) of the first and topographic images. These ejecta structures can develop when a comet or asteroid hits a surface saturated with water or water ice.
Perspective view
Finally, throughout the images and often near the wind-sheltered sides of mounds and canyons, extensive rippling sand dune fields are seen to have formed. 
3D view
In-depth studies of regions such as Nereidum Montes play an essential role in unlocking the geological past of our terrestrial neighbour, as well as helping to find exciting regions for future robotic and human explorers to visit.

Indian operators have until Dec. 31 to enable BlackBerry monitoring


India's telecom department (DoT) has demanded mobile operators enable the monitoring of BlackBerry services and user traffic by Dec. 31 this year. Failure to do so will result in these services being shut down.
BlackBerry maker, Research In Motion (RIM) had set up a local server in Mumbai since last February to allow Indian security agencies to monitor data flow between its BlackBerry Internet browsing and Messenger services. However, several local mobile operators had fallen behind schedule to connect to this system and test lawful interception capabilities, prompting the DoT to set the December deadline, the Hindu Business Line reported Wednesday.
It cited an internal DoT memo which said: "The BlackBerry Interception Solution shall be deployed and offered for testing to the respective Telecom Enforcement, Resource, and Monitoring Cells [which is the monitoring wing of the DoT] on or before Dec. 31, in such a manner that the services can be intercepted in a readable format.
"Failing the successful demonstration, the BlackBerry services shall be restrained to be offered to subscribers from Jan. 1, 2013."The stipulated deadline is the latest turn of events, which have been ongoing for over two years, regarding the Indian government's move to have the ability to intercept BlackBerry services, the report noted.
The government in August 2010 threatened to block RIM's BlackBerry services if it was not provided unencrypted access to Indian customers' e-mail and instant messaging. Besides BlackBerry Internet Service and BlackBerry Messenger, the Canadian smartphone maker also offers an e-mail client BlackBerry Enterprise Service, but it said it was unable to provide a technical solution for this service to be monitored. As a workaround, Indian security agencies would have to track all individual servers set up by corporations using this service.
To enable this, the DoT told operators to state the details of the server identity linked to each BlackBerry device on customer acquisition forms at the time of activating the connection, the report said. This would allow security agencies to directly access the specific server servicing a particular subscriber.

Security Threat to Skype in India; Government Warns Users


"A malicious spam campaign is on the rise targeting Skype users by sending instant message which appears to come from friends in the Skype contact list," a government advisory said to users on Tuesday, according to Press Trust of India.
The popular Voice-over Internet Protocol (VoIP) service was identified with malevolent content and links, after which cyber security officials strictly warned users not to click on such links which hints a fraud network.
In the wake of the newly emerged threat, cyber security experts have recommended a number of measures to tackle the spam. The authoritative body The Computer Emergency Response Team (CERT-In), which has been making efforts to tackle the threat, said the spam "eventually controls the victim machine by opening a backdoor and communicating to a remote http server".
"The worm [is] reported as stealing user credentials, engaging in click fraud activities and pose as ransom ware," the agency added. The advisory has asked users to download the latest version of Skype from a trustworthy source and update anti-virus software on their systems.
"Download the latest version of the Skype from the trusted markets, install and maintain updated anti-virus software at gateway and desktop level, use caution when opening attachments and accepting file transfers, disable auto play feature as a safe practice," the agency said."Use caution when clicking on links to web pages and protect yourself against social engineering attacks," it added.
Skype users have been facing problems of malicious content since the beginning of October. According to Trend Micro, messages like "lol is this new profile pic?" have been lurking in the vicinity of cyber networks of Indian users. A click on the message will lead to the download of malicious spam on a user's system.

Scientists Monitor Comet Breakup


The Hergenrother comet is currently traversing the inner-solar system. Amateur and professional astronomers alike have been following the icy-dirt ball over the past several weeks as it has been generating a series of impressive outbursts of cometary-dust material.
Now comes word that the comet's nucleus has taken the next step in its relationship with Mother Nature."Comet Hergenrother is splitting apart," said Rachel Stevenson, a post-doctoral fellow working at NASA's Jet Propulsion Laboratory in Pasadena, Calif.
"Using the National Optical Astronomy Observatory's Gemini North Telescope on top of Mauna Kea, Hawaii, we have resolved that the nucleus of the comet has separated into at least four distinct pieces resulting in a large increase in dust material in its coma."With more material to reflect the sun's rays, the comet's coma has brightened considerably.
"The comet fragments are considerably fainter than the nucleus," said James Bauer, the deputy principal investigator for NASA's NEOWISE mission, from the California Institute of Technology. "This is suggestive of chunks of material being ejected from the surface."
The comet's fragmentation event was initially detected on Oct. 26 by a team of astronomers from the Remanzacco Observatory, using the Faulkes Telescope North in Haleakala, Hawaii. The initial fragment was also imaged by the WIYN telescope group at Kitt Peak National Observatory in Arizona.
For those interested in viewing Hergenrother, with a larger-sized telescope and a dark sky, the comet can be seen in between the constellations of Andromeda and Lacerta.The orbit of comet 168P/Hergenrother comet is well understood. The comet, nor any of its fragments, is a threat to Earth.

Space Systems Loral Selected by USAF to Develop Next Gen Protected Military Satellite Communications


Space Systems/Loral (SS/L) has announced that it was selected by the U.S. Air Force Space and Missile Systems Center (SMC) to develop affordable design concepts for next generation Protected Military Satellite Communications (MILSATCOM). SS/L has a long history of successfully delivering timely and affordable high-performance commercial satellite systems.
As a prime contractor leading several protected communications system and technology domain expert companies, SS/L is well-positioned to provide proven solutions with shorter schedules and lower, better controlled cost, to defend against growing and changing intentional jamming and cyber threats and to deliver advanced communications capability to the warfighter.
In today's cost-conscious environment, the objective of the SMC program is to develop practical new architectures and technologies that will protect increasingly contested and threatened high security communications. Space Systems/Loral will combine its expertise and existing technologies from commercial developments together with existing military technologies provided by a team of domain experts to assess options for both space and ground segment design.
"The protected MILSATCOM contract is an opportunity for SS/L to continue its efforts to serve the U.S. Government with cost-effective solutions based on commercial market innovation," said John Celli, president of SS/L.
"Working with our industry partners, we will use domain expertise, proven military technology, and our supply chain efficiencies to quickly bring increased capability to the warfighter."The SS/L business is based on addressing changing requirements in mobile communications, broadband and high definition video broadcasting within the budget and schedule constraints of the commercial marketplace.
For the SMC's Protected MILSATCOM program, SS/L will help remedy existing gaps in the space communications layer and demonstrate specific design concepts focused on improved life-cycle affordability that will meet the warfighter needs far into the future.

Russian Proton Briz-M Launches Yamal Satellites Into Orbit


The Russian Proton-M launch vehicle carrying Yamal-300K telecoms satellite and Luch 5B relay satellite lifted off earlier on Saturday from the Baikonur space center in Kazakhstan. Both Yamal satellites launched earlier have successfully reached orbit, Russia's space agency Roscosmos confirmed on Saturday morning.
"The separation of the Yamal-300K from the Briz-M booster went smoothly, and to schedule," a Roscosmos spokesman told RIA Novosti on Saturday, adding that the same was true of the Luch 5B relay satellite, and confirming that both had entered orbit. The Russian Proton-M launch vehicle carrying Yamal-300K telecoms satellite and Luch 5B relay satellite lifted off earlier on Saturday from the Baikonur space center in Kazakhstan.
The satellites were built by Russia's Reshetnev space company.
The Yamal-300K will expand the cluster of Yamal class telecoms satellites operated by Gazprom Space Systems (GSS), a telecommunications arm of Russia's energy giant Gazprom.
The satellite is fitted with a combined payload including eight active 72 MHz transponders in C-band and eighteen active 72 MHz transponders in Ku-band.
Yamal-300K service zone covers 95% of the Russian territory.
The dual-purpose geostationary Luch 5B satellite has been primarily designed to relay live telemetry and other data from low-orbiting space vehicles as they fly beyond the communication range of ground control stations.
It is also capable of tracking low-flying space objects along their trajectories thanks to its two high-precision antennas operating in Ku-band and S-band.

Long-Term Sea Level Rise Could Cost Washington, D.C., Billions


— (PRNewswire) — A University of Maryland study projects that Washington, D.C., city and federal property could suffer billions of dollars in damage if sea level rise from global warming increases over the next century. Potential for significant damage will be even greater in the event of extreme weather like Hurricane Sandy.
The study by Civil and Environmental Engineering Professor Bilal Ayyub, Haralamb Braileanu and Naeem Qureshi, of the Clark School of Engineering's Center for Technology and Systems Management, looks at possible long term effects of projected sea level rise on Washington, D.C. real-estate property and government infrastructure. They conclude that over the next 100 years, continuing sea level rise could cause damages of more than $24.6 billion to Washington's commercial property, museums, and government agencies.
The study, "Prediction and Impact of Sea Level Rise on Properties and Infrastructure of Washington, D.C.," appears in the November 2012 issue of Risk Analysis, published by the Society for Risk Analysis. Current trends and predicted increases suggest the nation's capital is likely to face flooding and infrastructure damage brought about by sea level rise linked to thermal expansion of the oceans and melting of global ice sheets caused by global warming.
"Climate change not only results in increasing the sea level but also the annual rate and intensity of storms," says Ayyub. "Our loss predictions at high sea levels are partly intended to account for these extreme storms. However, due to lack of information available to us, they underestimate direct losses by not considering, for example, underground utilities, or including economic valuations of interruption of business and government operations."
Bolling, FBI, IRS
Using Geographic Information System (GIS) tools, data from government agencies and real-estate listings for property values, the University of Maryland researchers compared their results to models on sea level rise generated by authoritative international bodies and experts.
The results, based on what the authors say may be an optimistic model, show that the current rate of sea level rise in Washington, D.C., is about 3.16 millimeters per year. At the low levels of increase expected in the near future, sea level rise would lead to a minimal loss of city area. However, if sea level rises 0.1 meters by the year 2043, flooding about 103 properties and other infrastructure, damages would cost the city about $2.1 billion. Bolling Air Force Base would have 23 buildings impacted.
If sea level rise were to reach 5.0 meters over the next 100 years, the authors warn of significant damages, in excess of $24.6 billion, to commercial buildings, military installations, museums and government agencies, including the Federal Bureau of Investigation, the Justice Department, the Internal Revenue Service, the Federal Trade Commission and the Department of Education.
Extreme Weather Effects
While a long-term rise of 5.0 meters is considered unlikely, it may represent storm surges and waves created by extreme storms such as Hurricane Sandy, Tropical Storm Isabel in 2003, and the high tides and rains in April 2011, which triggered waterfront flooding in the city and Northern Virginia.
The study recommends that "Decisions must be made in the near future by lawmakers or city planners on how to reduce the impact of and adapt to sea level rise. Cost-effective methods to deal with sea level rise should be developed, and long-term solutions that extend well into this millennium are necessary."
The full study is available http://onlinelibrary.wiley.com/doi/10.1111/j.1539-6924.2011.01710.x/full.
The University of Maryland is a public research university located in the city of College Park just outside Washington, D.C. The University of Maryland was founded in 1856 and is the flagship institution of the University System of Maryland. As a Public Ivy institution, it has a fall 2010 enrollment of more than 37,000 students, over 100 undergraduate majors and 120 graduate programs. Its Center for Technology and Systems Management, directed by Professor Bilal Ayyub was founded in 1996 to leverages the expertise of both in-house experts and external associates to offer the capabilities for making intelligent decisions in areas of systems engineering that encompasses functional modeling, technology forecasting and assessment, human and organizational factors, and expert opinion elicitation; reliability, risk, statistical and decision studies that include risk analysis and management, risk-based regulation development, risk profiling, modeling and analysis, risk-based decision making, multi-criteria ranking and decision making, as well as failure, crash and accident investigation including forensic engineering; and project management that includes scheduling with network optimization and equilibrium problems. http://www.ctsm.umd.edu
About the A. James Clark School of Engineering
The Clark School of Engineering, situated on the rolling, 1,500-acre University of Maryland campus in College Park, Md., is one of the premier engineering schools in the U.S., with graduate and undergraduate education programs ranked in or near the Top 20. In 2012, the Clark School was ranked 14th in the world by the Institute of Higher Education and Center for World-Class Universities in its Academic Ranking of World Universities. Three faculty members affiliated with the Clark School were inducted into the National Academy of Engineering in 2010.
The school, which offers 13 graduate programs and 12 undergraduate programs, including degree and certification programs tailored for working professionals, is home to one of the most vibrant research programs in the country. The Clark School garnered research awards of $171 million last year.  With emphasis in key areas such as energy, nanotechnology and materials, bioengineering, robotics, communications and networking, life cycle and reliability engineering, project management, intelligent transportation systems and aerospace, the Clark School is leading the way toward the next generations of engineering advances.

GIS NEWS: Envitia announce the release of MapLink Pro 7.1




-- MapLink Pro is a component based geospatial development toolkit for the management and display of geospatial data. MapLink Pro 7.1 builds upon the high performance and flexible 64-bit architecture delivered in MapLink Pro 7.0. The latest release expands the already extensive data support to include over 20 new vector, raster and terrain formats including: ECRG, FileGDB, Geospatial PDF, KML, and USRP.  The full list is available at www.envitia.com/maplinkpro
MapLink Pro 7.1 also delivers enhanced support for loading and display of maritime formats, allowing developers to combine maritime geospatial data such as ENC (including encrypted S57/S63), AML, DNC, HCRF and DBDBV 6.2 with other non-maritime data sources.  MapLink Pro enables Situational Awareness and C2 Systems to access the same data that is being used by ECDIS and WECDIS systems.
“It is clear that organisations have a requirement to work with an ever increasing range of data formats and standards” says Matthew Wood, Product Manager, Envitia. “Interoperability is key, and MapLink Pro 7.1 continues to provide unrivalled support for integration of disparate data types, as well as extensive file format compatibility and support for open and industry standards.  With this release we are providing further data flexibility and agility to developers and system integrators.”
MapLink Pro has more than 7000 deployed systems worldwide and is the geospatial toolkit of choice for the world’s leading System and Technology Integrators. There is a 30-day evaluation version of MapLink Pro 7.1 available to download at www.envitia.com.

NASA's SPoRT Team Tracks Hurricane Sandy


The SPoRT team provided images to the National Weather Service to help forecast Hurricane Sandy. (NASA) 
As Hurricane Sandy wreaked havoc on the east coast, weather experts at the Short-term Prediction Research and Transition, or SPoRT Center at NASA's Marshall Space Flight Center in Huntsville were busy developing information to help forecasters better predict the massive storm.
The SPoRT Center uses Earth Observing System measurements and other satellite data to generate products useful in the analysis of weather events. SPoRT provides these products and data sets to partners within the National Oceanic and Atmospheric Administration (NOAA), NOAA's National Weather Service, and private sector organizations like The Weather Channel.
In 2002, NASA established SPoRT, at the Marshall Space Flight Center to facilitate the use of real-time Earth Observing System measurements for short-term weather forecasting. Near real-time satellite imagery is useful for monitoring current conditions and events likely to occur in the next few hours.
SPoRT provides a variety of satellite imagery and unique products from NASA and NOAA satellites such as Terra, Aqua, and the recently launched Suomi National Polar-Orbiting Partnership (Suomi NPP).These products can be useful for identifying hazards such as severe thunderstorms and tropical cyclones, fog, and snow cover, or help to monitor disasters such as floods and wildfires. SPoRT researchers also incorporate satellite observations of the land surface and profiles of atmospheric temperature and moisture within high resolution weather forecasting models with a goal of improving short-term weather predictions over the next few days.
"SPoRT has been transitioning unique NASA and NOAA research satellite data to numerous National Weather Service forecast offices for the last 10 years to help them improve short-term weather forecasts of hazardous weather conditions like hurricane Sandy," says Dr. Andrew Molthan, a research meteorologist affiliated with the project.
"We work closely with end users to understand their forecast problems and match our data capabilities to those problems."For the last year, several additional National Weather Service Centers of Excellence including the National Hurricane Center, the Hydrometeorological Prediction Center, and the Ocean Prediction Center, have used unique multichannel satellite composite products from SPoRT.
The composites are derived from NASA's Moderate Resolution Imaging Spectrometer or MODIS and the European Spinning Enhanced Visible and Infrared Imager or SEVIRI instruments to monitor large scale weather systems that pose significant weather threats to the United States.Through partnerships with NOAA's Satellite Proving Grounds, SPoRT provides additional data products from MODIS, SEVIRI, and the Visible Infrared Imaging Radiometer Suite or VIIRS instruments to monitor daily weather events, including then-Hurricane and now post-Tropical Cyclone Sandy. Forecasters are being provided imagery from multiple satellite sensors, including a recently developed "air mass" satellite product, fusing data from two instruments on the Suomi NPP satellite, to help forecasters monitor the development and decay of this storm.
"There are many MODIS and VIIRS images of Sandy available on the web, but SPoRT provides the National Weather Service with MODIS and VIIRS data directly within their decision support systems, allowing use with all of their other tools," said Molthan. "SPoRT creates a number of unique value-added products not available anywhere else."
NASA's Short-term Prediction Research and Transition (SPoRT) Center continues to provide satellite imagery to the National Weather Service weather forecast office partners and National Centers through core SPoRT activities and collaborations with NOAA's GOES-R and Joint Polar Satellite System (JPSS) Proving Grounds. Final images were created by NASA's SPoRT at Marshall Space Flight Center in Huntsville, Alabama, using MODIS and VIIRS data provided courtesy of the University of Wisconsin in Madison.
The compositing technique resulting in the false color VIIRS day-night band and infrared imagery was provided by the Naval Research Laboratory in Monterey, California as part of an ongoing NRL-SPoRT collaboration.