What lunar caves tell us about the shared origins of the Earth and the Moon

By Robin Smith, Senior Lecturer in Physics, Sheffield Hallam University

Using radar, a Nasa spacecraft, Lunar Reconnaissance Orbiter (LRO), has confirmed the existence of caves beneath the lunar surface. Here’s why such geological features will be key for establishing a base on the Moon, and what they can tell us about Earth and our Moon’s shared cosmological origins.

Lunar orbiting satellites first spotted pits on the Moon’s surface decades ago. Many of these were thought to be openings that connected…

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