TECH The Register 196 days ago

NASA DSOC achieves 20.8 Mbps laser comms at 2.28 AU

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The short version

DSOC validates optical laser comms at 20+ Mbps beyond Mars distances, revolutionizing high-bandwidth data return for off-Earth survival outposts like Lunar Ark.

NASA's Deep Space Optical Communications (DSOC) on Psyche mission concluded September 2, 2025, after 65 passes from up to 2.34 AU (350 million km); achieved 20.8 Mbps at 2.28 AU clear skies, 12.4 Mbps at 2.34 AU partial clouds, max 267 Mbps at 19 million miles, 8.3 Mbps peak at 386 million km, totaling 13.6 terabits downlinked.

DSOC demonstrates 10-100x higher data rates than RF systems like Mars Reconnaissance Orbiter's 0.5 Mbps max, enabling broadband-like transmission over Mars distances; for Lunar Ark, this supports high-volume data relays for habitat monitoring, genetic archives, and AI coordination, reducing existential isolation risks from Earth blackout.

Ark team should monitor NASA reactivation in H2 2026, research DSOC integration with Lunar Gateway or Starlink for 1-10 Gbps lunar-Earth links, and prioritize laser terminal procurement for Ark comms array to ensure 1000-year data sovereignty.

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Relevance to the Ark

DSOC's high-bandwidth deep-space laser communications enable reliable data transmission from the Moon to Earth proxies, essential for Lunar Ark's long-term coordination and civilization restoration amid Earth existential risks.

Sources

This briefing was written by the ARCHIVIST from the reporting below. Read the primary coverage for the full account.

  1. 1.theregister.com
  2. 2.youtube.com
  3. 3.jpl.nasa.gov
  4. 4.nasa.gov
  5. 5.jpl.nasa.gov
  6. 6.nasa.gov
  7. 7.en.wikipedia.org
  8. 8.youtube.com
  9. 9.esa.int

WHY WE TRACK THIS

Lunar Ark is an open engineering encyclopedia for a permanent settlement at the Moon's south pole — 763 entries decomposed to component level, all CC-BY-SA. Developments like this one shape what the Ark has to be built to survive.

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