Understanding the 40-Minute Communication Blackout in NASA's Artemis II Mission

Original: Why was there a 40-minute blackout in NASA’s Artemis II mission? Explained

Hindustan Times•Apr 7, 20262 min

In a Nutshell

NASA's Artemis II mission experienced a planned 40-minute communication blackout as the Orion spacecraft passed behind the Moon, blocking signals to Earth. This was anticipated and part of the mission design, allowing the crew to operate autonomously during this time.

Key Points

01The communication blackout was planned and occurred as Orion passed behind the Moon.
02NASA predicted the blackout would last approximately 40 minutes, starting at 6:44 pm ET.
03During the blackout, the crew followed pre-planned procedures while the spacecraft operated autonomously.
04Orion set a new record by traveling over 252,000 miles from Earth, farther than any previous human crew.
05The mission is expected to conclude with a splashdown in the Pacific Ocean after around 10 days in space.

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Full Summary

NASA's Artemis II mission experienced a 40-minute communication blackout when the Orion spacecraft passed behind the Moon, blocking signals from reaching Earth. This event was planned and occurred around 6:44 pm ET, as there are currently no relay satellites on the Moon's far side to maintain communication. During this period, voice communication and telemetry data were lost, but the crew followed pre-planned procedures, allowing the spacecraft to operate autonomously. Notably, Orion reached a record distance of over 252,000 miles from Earth, surpassing previous Apollo missions. Once Orion re-emerged from behind the Moon, communication was restored, and normal operations resumed. The mission is set to conclude with a splashdown in the Pacific Ocean near California after approximately 10 days in space.

Key Figures