The Moon, our planet’s constant companion for some 4.5 billion years, may have been forged by a rash of smaller bodies smashing into an embryonic Earth, researchers said Monday.
Such a bombardment birth would explain a major inconsistency in the prevailing hypothesis that the Moon splintered off in a single, giant impact between Earth and a Mars-sized celestial body.
In such a scenario, scientists expect that about a fifth of the Moon’s material would have come from Earth and the rest from the impacting body.
Yet, the makeup of the Earth and the Moon are near identical — an improbability that has long perplexed backers of the single-impact hypothesis.
Eliminate unwanted invaders from your body with Living Defense Plus now at 60% off!