The near and far sides of the Moon, as reconstructed with imagery from NASA’s Clementine mission. Image credit: NASA / Clementine Mission / Lunar & Planetary Institute / USRA.

7 ways Earth would change if our Moon were destroyed

We take for granted how much the Moon does for Earth, but not all of the changes would be bad.

Ethan Siegel
7 min readMar 9, 2017

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“If we get rid of the moon, women, those menstrual cycles are governed by the moon, will not get PMS. They will stop bitching and whining.” -Joe Scarborough, misattributing a quote to Arnold Schwarzenegger that was actually spoken by an impersonator

For nearly the entire 4.5 billion year history of our Solar System, the Earth hasn’t been alone while we revolve around the Sun. Our giant lunar companion is larger and more massive than any other moon when compared to the planet it orbits. When it’s in its full phase, it brightly illuminates the night, and the Moon has been linked throughout history to phenomena such as insanity (or lunacy), animal behavior (howling at the moon), farming (a harvest moon), and even women’s menstrual cycles. While those links don’t stand up to scientific scrutiny, there are many ways the Moon actually does affect the Earth. Destroying it would be a catastrophe, but would also change our world forever in some incredibly interesting ways.

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Ethan Siegel
Starts With A Bang!

The Universe is: Expanding, cooling, and dark. It starts with a bang! #Cosmology Science writer, astrophysicist, science communicator & NASA columnist.