With the return of humans to cislunar space marked by the successful Artemis II mission in April, and several commercial lunar landers slated for launch in the near future, 2026 is already shaping up to be a landmark year for lunar exploration and science. NASA’s Lunar and Human Spaceflight Spectrum Manager, Cathy Sham, has been working alongside commercial and international experts in space communications, science, and spectrum planning to develop a rational, efficient, and effective spectrum architecture. This effort aims to ensure a vibrant ecosystem in which science instruments and communications infrastructure are both compatible and interoperable.

In this talk, Ms. Sham will discuss international technical collaborations to design and refine a sustainable frequency architecture; initiatives at the International Telecommunication Union to recognize scientific applications of spectrum use in the lunar vicinity; and ongoing efforts to coordinate spectrum usage among lunar mission operators prior to formal regulatory filings for spectrum licenses.

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