Prototype for new concept of 'Interplanetary Internet' communications tested"
"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 — glitches that commonly plague deep-space communications...."
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