Astronomy Report Astronomy Report
Recent News |  Archives |  Tags |  Space Weather |  Space Weather Email Alerts (New!) |  About |  Newsletter |  Submit News |  Links |  Subscribe to AstronomyReport.com RSS Feed Subscribe


More Articles
Scorpions are master architects, according to new researchScorpions are master architects, according to new research

Gene discovery could lead to better soybean varieties for Northern United StatesGene discovery could lead to better soybean varieties for Northern United States

Substance P in hippocampus versus striatal marginal division for learning/memory functionSubstance P in hippocampus versus striatal marginal division for learning/memory function

Running for life: How speed restricts evolutionary change of the vertebral columnRunning for life: How speed restricts evolutionary change of the vertebral column

Researchers discover boron 'buckyball'Researchers discover boron 'buckyball'

In development, it's all about the timingIn development, it's all about the timing

Brain waves show learning to read does not end in 4th grade, contrary to popular theory

The bend in the Appalachian mountain chain is finally explainedThe bend in the Appalachian mountain chain is finally explained

Meet the gomphothere: UA archaeologist involved in discovery of bones of elephant ancestorMeet the gomphothere: UA archaeologist involved in discovery of bones of elephant ancestor

Is the universe a bubble? Let's checkIs the universe a bubble? Let's check

Getting a grip on robotic graspGetting a grip on robotic grasp

Postcards from the photosynthetic edgePostcards from the photosynthetic edge

How does miR-21 promote the differentiation of hair follicle-derived NCSCs into SCs?How does miR-21 promote the differentiation of hair follicle-derived NCSCs into SCs?

International science team solve biological mysteryInternational science team solve biological mystery

Sophisticated radiation detector designed for broad public useSophisticated radiation detector designed for broad public use

Cooperation among humans, a question of ageCooperation among humans, a question of age

Protein's 'hands' enable bacteria to establish infection, research findsProtein's 'hands' enable bacteria to establish infection, research finds

Less exercise, not more calories, responsible for expanding waistlinesLess exercise, not more calories, responsible for expanding waistlines

70-foot-long, 52-ton concrete bridge survives series of simulated earthquakes70-foot-long, 52-ton concrete bridge survives series of simulated earthquakes

Extinct human cousin gave Tibetans advantage at high elevationExtinct human cousin gave Tibetans advantage at high elevation

High earners in a stock market game have brain patterns that can predict market bubblesHigh earners in a stock market game have brain patterns that can predict market bubbles

Platonic solids generate their 4-dimensional analoguesPlatonic solids generate their 4-dimensional analogues

A healthy lifestyle adds years to lifeA healthy lifestyle adds years to life

Study of animal urination could lead to better-engineered productsStudy of animal urination could lead to better-engineered products

All the world's oceans have plastic debris on their surfaceAll the world's oceans have plastic debris on their surface

Do probiotics help kids with stomach bugs?Do probiotics help kids with stomach bugs?

Strict diet suspends development, doubles lifespan of wormsStrict diet suspends development, doubles lifespan of worms

Identified for the first time what kind of explosive has been used after the detonationIdentified for the first time what kind of explosive has been used after the detonation

Copied from nature: Detecting software errors via genetic algorithmsCopied from nature: Detecting software errors via genetic algorithms

New 'space Internet' system on International Space Station to be tested (7/11/2009)

Tags:
communications, international space station
CU-Boulder space payload operators Emily Pilinski, left, Andrew Jenkins, center, and Sebastian Kusminski, all of BioServe Space Technologies in the aerospace engineering sciences department, receive data packets from the International Space Station as part of tests beginning this week to extend the Internet to outer space. -  Photo by Glenn Asakawa/University of Colorado
CU-Boulder space payload operators Emily Pilinski, left, Andrew Jenkins, center, and Sebastian Kusminski, all of BioServe Space Technologies in the aerospace engineering sciences department, receive data packets from the International Space Station as part of tests beginning this week to extend the Internet to outer space. - Photo by Glenn Asakawa/University of Colorado

The University of Colorado at Boulder is working with NASA to develop a new communications technology now being tested on the International Space Station, which will extend Earth's Internet into outer space and across the solar system.

Called Disruption Tolerant Networking, or DTN, the new technology will enable NASA and other space agencies around the world to better communicate with international fleets of spacecraft that will be used to explore the moon and Mars in the future. The technology is expected to lead to a working "Interplanetary Internet," said Kevin Gifford, a senior research associate at CU-Boulder's BioServe Space Technologies and a faculty member in the aerospace engineering sciences department.

"Communication between spacecraft and ground stations has traditionally been over a single point-to-point link, much like a walkie-talkie," said Gifford. "Currently, space operations teams must manually schedule each link and generate appropriate commands to specify where the data is to be sent, the time it will be sent and its destination. As the number of spacecraft and links increase and the need to communicate between many space vehicles emerges, these manual operations become increasingly cumbersome and costly," he said.

"Highly automated future communications capabilities will be required for lunar habitation and surface exploration that include passing information between orbiting relay satellites, lunar and planetary habitats and astronauts on the surface," said Gifford. "But existing Internet protocols, where Internet hosts and computers are always connected, do not work well for many space-based environments, where intermittently connected operations are common."

The new data communications protocols were installed on a BioServe payload known as the Commercial Generic Bioprocessing Apparatus, or CGBA, on the International Space Station in May to send DTN messages known as "bundles," said Gifford. As part of NASA's communication operations test that will begin June 15, bundles will be sent from the space station to its operations and control facility at Marshall Space Flight Center in Huntsville, Ala., then on to a mission control center at CU-Boulder's BioServe.

The new DTN "Bundle Protocol" was developed by the Internet Research Task Force based on initial work started over 10 years ago in a partnership between NASA and Vint Cerf, who holds the title of vice president and chief Internet evangelist of Google Inc. of Mountain View, Calif. Cerf often is referred to as one of the "fathers" of the Internet.

Cerf said that "while conventional Internet protocols may work well in short-delay, richly connected terrestrial environments, they quickly degrade in long-delay and highly stressed wireless data communications scenarios that are already beginning to be encountered at the edges of the Internet, which is where space tends to begin."

Cerf's counterpart in the Space Communications and Navigation office at NASA Headquarters in Washington, D.C., is Adrian Hooke. Hooke, a veteran of the Apollo 11 mission launch team, is the manager of NASA's new Space DTN project and is a pioneer in the development of international space networking standards.

"With the new system, delays caused by spacecraft moving behind planets or solar storms disrupting communications are not a problem because the data packets are not discarded when outages occur, but instead are stored as long as necessary until an opportunity arises that allows them to be transmitted," Hooke said. "This 'store-and forward' method is similar to a basketball player passing the ball down the court to other players nearer to the basket, who have a clear shot at the goal."

"By improving data timeliness associated with robotic and human-tended missions, NASA is reducing risk, reducing cost, increasing crew safety, improving operational awareness and improving science return," said Gifford. "There also are intriguing applications of the DTN technology on Earth. They include the tracking of livestock and wildlife, enhancing Internet 'hot spot' connectivity in remote rural areas in Third World countries, and tactical operations support for the U.S. military."

Multiple NASA centers are involved in the research, including the Marshall Space Flight Center, the Johnson Space Center in Houston, the Glenn Research Center in Cleveland, the Goddard Space Flight Center in Greenbelt, Md., the Jet Propulsion Laboratory in Pasadena, Calif., and the Applied Physics Laboratory at Johns Hopkins University in Laurel, Md. NASA and CU-Boulder also are exploring ways to extend the experiments on the International Space Station to involve the European Space Agency and the Japanese Aerospace Exploration Agency.

In November 2008, JPL first tested the DTN protocols by transmitting dozens of space images through the EPOXI spacecraft -- located about 20 million miles from Earth -- back to NASA's Deep Space Network. "The new series of DTN testing on the International Space Station adds yet another space-based router to the gradually evolving Interplanetary Internet," said Hooke.

Note: This story has been adapted from a news release issued by the University of Colorado at Boulder

Post Comments:

Solar X-rays

Geomagnetic Field

Search
New Articles
Arizona State University, US Geological Survey project yields sharpest map of Mars surface propertiesArizona State University, US Geological Survey project yields sharpest map of Mars surface properties

Asteroid Vesta to reshape theories of planet formationAsteroid Vesta to reshape theories of planet formation

NASA-funded mission to study the sun's energyNASA-funded mission to study the sun's energy

Hubble spots spiral bridge of young stars linking two ancient galaxiesHubble spots spiral bridge of young stars linking two ancient galaxies

Astronomers find 7 dwarf galaxies with new telescopeAstronomers find 7 dwarf galaxies with new telescope

Diving for pearls with the Hubble Space TelescopeDiving for pearls with the Hubble Space Telescope

Radio-burst discovery deepens astrophysics mysteryRadio-burst discovery deepens astrophysics mystery

Sun-like stars reveal their agesSun-like stars reveal their ages

Merging galaxies and droplets of starbirthMerging galaxies and droplets of starbirth

New technology illuminates colder objects in deep space

NASA finds friction from tides could help distant earths survive, and thriveNASA finds friction from tides could help distant earths survive, and thrive

VLT clears up dusty mysteryVLT clears up dusty mystery

Cosmic grains of dust formed in supernova explosionCosmic grains of dust formed in supernova explosion

Astronomers bring the third dimension to a doomed star's outburstAstronomers bring the third dimension to a doomed star's outburst

Planet Mercury a result of early hit-and-run collisionsPlanet Mercury a result of early hit-and-run collisions



Archives
July 2014
June 2014
May 2014
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
November 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
August 2009
July 2009
June 2009
May 2009
April 2009
March 2009
February 2009
January 2009
December 2008
November 2008
October 2008
September 2008
August 2008
July 2008
June 2008
May 2008
April 2008
March 2008
February 2008
January 2008
December 2007
November 2007
October 2007
September 2007
August 2007
July 2007
June 2007


Science Friends
Agricultural Science
Sports Tech
Biology News
Biomimicry Science
Cognitive Research
Chemistry News
Tissue Engineering
Cancer Research
Cybernetics Research
Electonics Research
Forensics Report
Fossil News
Genetic Archaeology
Genetics News
Geology News
Microbiology Research
Nanotech News
Parenting News
Physics News


  Archives |  Submit News |  Advertise With Us |  Contact Us |  Links
Use of this site constitutes acceptance of our Terms of Service and Privacy Policy. All contents © 2000 - 2015 Web Doodle, LLC. All rights reserved.