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
Discovery hints at why stress is more devastating for someDiscovery hints at why stress is more devastating for some

An uphill climb for mountain species?An uphill climb for mountain species?

'Solid' light could compute previously unsolvable problems'Solid' light could compute previously unsolvable problems

Molecular self-assembly controls graphene-edge configurationMolecular self-assembly controls graphene-edge configuration

Team identifies important regulators of immune cell responseTeam identifies important regulators of immune cell response

Researchers develop ultra sensitive biosensor from molybdenite semiconductorResearchers develop ultra sensitive biosensor from molybdenite semiconductor

Childhood mentors have positive impact on career successChildhood mentors have positive impact on career success

Blood-cleansing biospleen device developed for sepsis therapyBlood-cleansing biospleen device developed for sepsis therapy

Asian monsoon much older than previously thoughtAsian monsoon much older than previously thought

Enigmatic Viking fortress discovered in DenmarkEnigmatic Viking fortress discovered in Denmark

The ozone hole has stabilized -- some questions remainThe ozone hole has stabilized -- some questions remain

Evolutionary tools improve prospects for sustainable developmentEvolutionary tools improve prospects for sustainable development

Missing piece found to help solve concussion puzzleMissing piece found to help solve concussion puzzle

In directing stem cells, study shows context mattersIn directing stem cells, study shows context matters

Hydrogen powers important nitrogen-transforming bacteriaHydrogen powers important nitrogen-transforming bacteria

Computer games give a boost to EnglishComputer games give a boost to English

Pesky insect inspires practical technologyPesky insect inspires practical technology

Mapping the DNA sequence of Ashkenazi JewsMapping the DNA sequence of Ashkenazi Jews

News media losing role as gatekeepers to new 'social mediators' on Twitter, study findsNews media losing role as gatekeepers to new 'social mediators' on Twitter, study finds

An 'anchor' that keeps proteins togetherAn 'anchor' that keeps proteins together

Biologists delay the aging process by 'remote control'Biologists delay the aging process by 'remote control'

Milk prices top concern of Northeastern organic dairy farmersMilk prices top concern of Northeastern organic dairy farmers

Cicada study discovers 2 genomes that function as 1Cicada study discovers 2 genomes that function as 1

Bombarded by explosive waves of information, scientists review new ways to process and analyze Big DataBombarded by explosive waves of information, scientists review new ways to process and analyze Big Data

Program earns kudos for improving grades, retaining studentsProgram earns kudos for improving grades, retaining students

Geography matters: Model predicts how local 'shocks' influence U.S. economyGeography matters: Model predicts how local 'shocks' influence U.S. economy

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

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
Scientist explores birth of a planetScientist explores birth of a planet

Spectrograph obtains first far ultraviolet spectra of a cometary surface

Researchers discover new clues to determining the solar cycleResearchers discover new clues to determining the solar cycle

Hawaii scientist maps, names Laniakea, our home supercluster of galaxiesHawaii scientist maps, names Laniakea, our home supercluster of galaxies

Newly identified galactic supercluster is home to the Milky WayNewly identified galactic supercluster is home to the Milky Way

Cosmic forecast: Dark clouds will give way to sunshineCosmic forecast: Dark clouds will give way to sunshine

Observing the onset of a magnetic substorm

Mixing in star-forming clouds explains why sibling stars look alikeMixing in star-forming clouds explains why sibling stars look alike

Researchers awarded $1.5 million to develop software to process solar astronomy data on larger scale

Astrophysicists report radioactive cobalt in supernova explosionAstrophysicists report radioactive cobalt in supernova explosion

Radio telescopes settle controversy over distance to Pleiades

Researchers use NASA and other data to look into the heart of a solar stormResearchers use NASA and other data to look into the heart of a solar storm

Orion rocks! Pebble-size particles may jump-start planet formationOrion rocks! Pebble-size particles may jump-start planet formation

Scientist uncovers red planet's climate history in unique meteorite

What lit up the universe?What lit up the universe?



Archives
September 2014
August 2014
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.