Fossilized feature records Moon’s slow retreat from Earth
New research provides insight into the Moon’s excessive equatorial bulge, a feature that solidified in place over four billion years ago as the Moon gradually distanced itself from the Earth.
A new study published in Geophysical Research Letters, a journal of the American Geophysical Union, sets parameters on how quickly the Moon could have receded from the Earth and suggests the nascent planet’s hydrosphere was either non-existent or still frozen at the time, indirectly supporting the theory of a fainter, weaker Sun that at the time radiated around 30 percent less energy than it does today....more
— Trent Knoss is a science writer at CU Boulder. This post originally appeared on the CU Boulder website.
- Article Category
- Research Letters
Formation of the Lunar Fossil Bulges and Its Implication for the Early Earth and Moon
- First Published:
- | DOI:
Eos.org: Earth & Space Science News
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