Marius Hills Pit -- Lava Tube Skylight?

The Marius Hills pit is a possible skylight in a lava tube in an ancient volcanic region of the Moon called the Marius Hills. This image was taken by NASA Lunar Reconnaissance Orbiter.

The Marius Hills pit is a possible skylight in a lava tube in an ancient volcanic region of the Moon called the Marius Hills. This image was taken by NASA Lunar Reconnaissance Orbiter.

MoonLunar Reconnaissance Orbiter LRO