Science & technology | Not that sort of monolith

An enormous—and unexpected—lump of granite has been found on the Moon

The discovery sheds light on lunar history, and suggests how other moons might be explored

Small dome in the Compton-Belkovich region of the moon.
Image: NASA/GSFC/Arizona State University

In “2001: A Space Odyssey”, Stanley Kubrick and Arthur C. Clarke imagined a monolith buried beneath the surface of the Moon which turned out to be an alien artefact that set humankind on a path to the stars. The “batholith” that has been discovered below Compton-Belkovich, a volcanic-looking set of features on the far side of the Moon, hardly promises that. But it sheds some interesting light on the Moon’s past, and shows the power of a new way of peering into the crusts of other planets.

This article appeared in the Science & technology section of the print edition under the headline “Beneath the far side of the Moon”

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