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- W2955983437 abstract "WITH NASA MAKING serious moves toward a permanent return to the moon, it's natural to wonder whether human settlers-accustomed to high-speed, ubiquitous Internet access—will have to deal with mind-numbingly slow connections once they arrive on the lunar surface. The vast majority of today's satellites and spacecraft have data rates measured in kilobits per second. But long-term lunar residents might not be as satisfied with the skinny bandwidth that, say, the Apollo astronauts contended with. • To meet the demands of highdefinition video and data-intensive scientific research, NASA and other space agencies are pushing the radio bands traditionally allocated for space research to their limits. For example, the Orion which will carry astronauts around the moon during NASA's Artemis 2 mission in 2022, will transmit mission-critical information to Earth via an S-band radio at 50 megabits per second. It's the most complex flight-management system ever flown on a spacecraft, says Jim Schier, the chief architect for NASA's Space Communications and Navigation program. Still, barely 1 Mb/s will be allocated for streaming video from the mission. That's about one-fifth the speed needed to stream a high-definition movie from Netflix. • To boost data rates even higher means moving beyond radio and developing optical communications systems that use lasers to beam data across space. In addition to its S-band radio, Orion will carry a laser communications system for sending ultrahigh-definition 4K video back to Earth. And further out, NASA's Gateway will create a long-term laser communications hub linking our planet and its satellite." @default.
- W2955983437 created "2019-07-12" @default.
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- W2955983437 date "2019-07-01" @default.
- W2955983437 modified "2023-09-27" @default.
- W2955983437 title "Phoning home, with lasers: Optical communications will provide a high-speed connection to Earth" @default.
- W2955983437 doi "https://doi.org/10.1109/mspec.2019.8747315" @default.
- W2955983437 hasPublicationYear "2019" @default.
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