Subscribe to our free daily newsletters
. 24/7 Space News .




Subscribe to our free daily newsletters



ICE WORLD
Antarctic Selfie's Journey to Space via Disruption Tolerant Networking
by Erin Mahoney for NASA Science News
Washington DC (SPX) Nov 30, 2017


Taken at the National Science Foundation's McMurdo Station in Antarctica, this selfie made its way to the space station on Nov. 20 using a technology called Disruption Tolerant Networking (DTN). NASA engineers Mark Sinkiat, Peter Fetterer and Salem El-nimri held up a picture of Vint Cerf, a distinguished visiting scientist at NASA's Jet Propulsion Laboratory who helped develop the technology.

NASA is boosting cyber to space with benefits for Earth. On Nov. 20, 2017, a selfie snapped from the National Science Foundation's McMurdo Station in Antarctica demonstrated technology that can enable the future interplanetary internet. Called Disruption Tolerant Networking (DTN), the technology is NASA's solution to reliable interplanetary data transmissions when vast distances or alignments of celestial bodies may disrupt communications.

Though Antarctic researchers are not communicating across interplanetary distances, McMurdo's remote location and minimal infrastructure make it an ideal candidate to benefit from this technology. DTN bundles data and transmits as many bundles as it can when a communication path opens. If a bundle fails to transmit, it goes into storage and waits for the next communication path to open, then sends it. If the bundles were all part of a single file, the file can be reassembled at the final destination.

How did an Antarctic selfie get to the space station via DTN?
Starting at McMurdo, DTN software on a mobile phone sent the picture on its journey to the International Space Station. The bundles traveled from the McMurdo ground station to NASA's White Sands Complex via the Tracking and Data Relay Satellite (TDRS). Then, a series of DTN nodes forwarded the bundles to NASA's Marshall Space Flight Center in Huntsville, Alabama, which is the access point to the operational space station DTN network.

The bundles were forwarded to the space station via another TDRS link where they were then routed to the Telescience Resource Kit (TReK) demonstration payload. The final DTN node extracted the picture data from the DTN bundles that originated from Antarctica. The payload reassembled the original picture and displayed it onboard the station.

"This demonstration really highlights 'internetworking' using DTN," said David Israel, a space communications architect at NASA's Goddard Space Flight Center in Greenbelt, Maryland. "DTN provides the means for routing data between two endpoints within two individual networks that cannot have a continuous path between them."

Unlike the familiar computer-to-computer IP connection, the technology allows for temporary disruptions and long delays like those that can be experienced by spacecraft as well as remote locations on Earth.

"We're cutting our teeth on this software, in real field conditions," said Patrick Smith, technology development manager for polar research support with the NSF-managed U.S. Antarctic Program. "The simplicity of transmitting from a smart phone could have significant implications for increasing and diversifying the science we support in the polar regions. This represents a vision of how our remote autonomous field research instrumentation might operate one day."

Data transmission has always been a challenge for Antarctic researchers. With scant civil infrastructure and very few providers able to service the geographic South Pole, the data demand far exceeds the combined network capabilities for research stations on the continent. Communication disruptions can have serious consequences for researchers, because data must be regularly assessed with colleagues for quality assurance and adjustments.

"The Antarctic is an excellent analog for space operations," Smith noted. "Researchers are conducting important scientific investigations, operating in extreme conditions, with minimal infrastructure, so it's not surprising that we are using NASA space technology to advance science in the Antarctic."

Israel suggests there are many more potential terrestrial applications for DTN. "Any remote location on Earth that experiences limited network connectivity is a candidate for DTN," he said. "Relief to disaster zones could potentially be improved with better communications using the software on mobile devices by maximizing the use of intermittent access or spotty availability."

The most recent demonstration provided an opportunity for both NASA and NSF to exercise DTN in a scenario analogous to future applications.

NASA hopes to expand DTN use and discover even more applications. The agency is working to standardize DTN through the Consultative Committee for Space Data Systems and with the Internet Engineering Task Force, and has released implementations of DTN protocols through open-source software.

NASA's Advanced Exploration Systems (AES) DTN team is led out of NASA's Johnson Space Center with support from Goddard Space Flight Center, the Jet Propulsion Laboratory, Marshall Space Flight Center, the MITRE Corporation and the Johns Hopkins University Applied Physics Lab. The team works with the Space Communications and Navigation (SCaN) division at NASA Headquarters to integrate DTN with NASA's communication networks, including the Deep Space Network, Near Earth Network and Space Network, to support future missions.

ICE WORLD
Antarctic landscape insights keep ice loss forecasts on the radar
Edinburgh UK (SPX) Nov 29, 2017
New high-resolution maps of the complex landscape beneath a major West Antarctic glacier will be valuable for forecasting global sea level rise, researchers say. Radar surveys of the land beneath Pine Island Glacier, obtained by snowmobile, have revealed a surprisingly diverse, mountainous landscape under the ice. The findings are significant as Pine Island Glacier is the fastest mel ... read more

Related Links
Disruption Tolerant Networking
Beyond the Ice Age


Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only

Comment using your Disqus, Facebook, Google or Twitter login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

ICE WORLD
Does the Outer Space Treaty at 50 need a rethink

NASA to send critical science, instruments to Space Station

Can a magnetic sail slow down an interstellar probe

SSL Selected to Conduct Power and Propulsion Study for NASA's Deep Space Gateway Concept

ICE WORLD
Flat-Earther's self-launch plan hits a snag

SSTL ships CARBONITE-2 and Telesat's LEO-1 for PSLV launch

Aerojet Rocketdyne supports ULA Delta II launch of JPSS-1

Old Rivals India, China Nurture New Rivalry in Satellite Launch Business

ICE WORLD
Gadgets for Mars

Ice shapes the landslide landscape on Mars

Winds Blow Dust off the Solar Panels Improving Energy Levels

Previous evidence of water on Mars now identified as grainflows

ICE WORLD
Nation 'leads world' in remote sensing technology

China plans for nuclear-powered interplanetary capacity by 2040

China plans first sea based launch by 2018

China's reusable spacecraft to be launched in 2020

ICE WORLD
Need to double number of operational satellites: ISRO chief

Space Launch plans UK industry tour

Astronaut meets volcano

European Space Week starts in Estonia

ICE WORLD
New way to write magnetic info could pave the way for hardware neural networks

Device could reduce the carbon footprint of ethylene production

Researchers inadvertently boost surface area of nickel nanoparticles for catalysis

X-rays reveal the biting truth about parrotfish teeth

ICE WORLD
Mexico's Yucatan Peninsula reveals a cryptic methane-fueled ecosystem in flooded caves

Researchers prolong life by curbing common enzyme

First known interstellar visitor is an 'oddball'

Lava or Not, Exoplanet 55 Cancri e Likely to have Atmosphere

ICE WORLD
Pluto's hydrocarbon haze keeps dwarf planet colder than expected

Jupiter's Stunning Southern Hemisphere

Watching Jupiter's multiple pulsating X-ray Aurora

Help Nickname New Horizons' Next Flyby Target




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News






The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement