Much of Earth’s Water is Older than the Sun


Much of the water on Earth and elsewhere in the solar system likely predates the birth of the sun, a new study reports.

The finding suggests that water is commonly incorporated into newly forming planets throughout the Milky Way galaxy and beyond, researchers said — good news for anyone hoping that Earth isn’t the only world to host life.

“The implications of our study are that interstellar water-ice remarkably survived the incredibly violent process of stellar birth to then be incorporated into planetary bodies,” study lead author Ilse Cleeves, an astronomy Ph.D. student at the University of Michigan, told Space.com via email. [7 Theories on the Origin of Life]

via Much of Earth’s Water is Older than the Sun.

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