NASA has just deployed the first test of a long-in-the-works technology that will provide solar system-wide internet. The technology–called Delay/Disrupt Tolerant Networking (DTN)–behaves somewhat like a terrestrial wifi system, and will enable better data transmission between the ISS and ground stations on Earth, with robotic spacecraft in deep space, and one day with humans on other planets.
On Earth, data transmissions are passed along through a series of nodes, or static communication points that are all active and available at the same time. But in space such nodes are not stationary, so new technology had to be developed to allow data to be stored at a given node and then passed along to the next one as and when it becomes available, as shown in the video below.
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