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Posted

NASA and the European Space Agency have tested out a prototype system that may one day help enable Internet-like communications between Earth and robots on another planet.

Astronaut Sunita Williams, commander of the International Space Station's current Expedition 33 mission, used NASA's experimental Disruption Tolerant Networking (DTN) protocol to drive a small LEGO robot at the European Space Operations Center in Germany late last month.

The European-led experiment simulated a scenario in which an astronaut orbiting another world controls a robotic rover on the planet's surface, NASA officials said.

"The demonstration showed the feasibility of using a new communications infrastructure to send commands to a surface robot from an orbiting spacecraft and receive images and data back from the robot," Badri Younes, deputy associate administrator for space communications and navigation at NASA Headquarters in Washington, said in a statement.

"The experimental DTN we've tested from the space station may one day be used by humans on a spacecraft in orbit around Mars to operate robots on the surface, or from Earth using orbiting satellites as relay stations," Younes added.

NASA's DTN architecture is a new technology designed to enable standardized communications over long distances and through time delays, agency officials said. At its core is something called the Bundle Protocol (BP), which is similar to the Internet Protocol, or IP, that serves as the heart of the Internet here on Earth.

The big difference between the two is that IP assumes a seamless end-to-end data path, while BP is built to account for errors and disconnections

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NASA DTN Protocol: Interplanetary Internet, How It Works, What LEGOS Have to To With It

NASA is calling it the interplanetary Internet, and announcements have been hitting in recent weeks regarding the sending of the first emails, voicemails and, of late, news of an experiment that involved remote controlling of a LEGO space robot with it. But what

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Posted

Every article I've read on this has been kinda light on details, there's obviously a reason why DTN/BP is better than IP/UDP/TCP, but they don't say why specifically (The reasons given, things like latency or packet drop are an issue on IP networks to, part of it's design is to handle them)

From reading Wikipedia I get the idea that BP is message based, rather than packet based, but that's about it.

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Posted

I think the most important thing is, when can I order it and will it be faster than 2658 kbps? :p

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Topics Merged

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