Associazione Arma Aeronautica Sezione Roma 2 Luigi Broglio

Most of Earth’s water came from a cosmic collision that formed the Moon.

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                              Isotope analysis indicates that Earth's water may have arrived when the Moon was formed(Credit: NASA Goddard)

Source: New Atlas, by David Szondy, May 23rd, 2019

The question of where Earth's large amount of water came from may find its answer by looking to the Moon. According to research by planetologists at the University of Münster, a collision with a Mars-sized planetoid that formed the Moon 4.4 billion years ago brought with it almost all the water that makes our planet habitable, as well as creating our relatively large satellite that stabilized the planet's axis........

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