The surface feature is Mare Tranquillitatis, or the Sea of Tranquility, where the Apollo 11 mission landed on the afternoon of July 20, 1969.
Scientists have discovered a large lunar cave connected to a pit found within the moon's Sea of Tranquility.
NASA/Goddard/Arizona State UniversityScientists have found a subterranean cavity beneath the Sea of Tranquility, and it may provide shelter for future lunar astronauts in the form of a cave.
Lunar caves, or underground passages formed by volcanic processes during the moon’s early history, are connected to pits covering the lunar surface.
The long, wide cave, found by reviewing archival NASA data, could be used to protect astronauts from harsh radiation and extreme temperature swings as well as provide a new avenue to study lunar rocks.
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