NASA is seeking information from commercial providers on secondary communications capabilities to support the Artemis IV mission, which will launch crew in the Orion spacecraft to lunar orbit no later than March 2028. The system must provide near continuous communication with a downlink of at least 12 Mbps (goal of 20-50 Mbps) and an uplink of at least 500 kbps, with ease of integration into Orion being critical due to the short timeline. Hardware delivery timelines vary by configuration: engineering hardware by December 2026 and flight hardware by March 2027 for externally mounted options, or flight hardware by fall 2027 for internally configured systems. The location for performance is lunar orbit, with Orion remaining there while crew transfer to and from the lunar surface via the Human Landing System. No specific budget amounts are mentioned in the description.