NASA's Artemis II proves laser comms can stream HD video from the Moon
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You want your Moon landings in HDTV? So does NASA—here's how it's happening.
Ars Technica →Artemis II’s four-person crew beamed most of their video home over radio — S-band at 3-5 MB/s, a modest step up from Apollo’s 50 KB/s but still low-definition by modern standards. Radio stayed the default because the communication architecture mirrors Apollo’s: large ground dishes picking up RF signals from the spacecraft.
The breakthrough came from an experimental optical laser terminal on Orion. When connected to ground stations, throughput jumped to 260 Mbps — fast enough to move a full HD movie in seconds, and the pipeline behind the high-resolution far-side imagery and solar eclipse photos returned during the mission.
Two constraints held back wider use: the laser system was still a tech demo, and only three ground stations worldwide can currently receive these optical signals — two in the US and one in Australia. The mission also included a commercial laser-comms component, hinting at a future where private infrastructure expands deep-space bandwidth well beyond what NASA alone can provide.
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