Water found in samples from asteroid Ryugu

Society Lifestyle Science

Tokyo, Sept. 23 (Jiji Press)–Water has been found in samples from the asteroid Ryugu brought to Earth by Japanese explorer Hayabusa2, according to a study published in the American journal Science.

This is the first-ever discovery of water that takes on a liquid form at room temperature from any sample taken outside Earth, according to a study by a team of researchers mostly from the University. of Tohoku and the Japan Aerospace Exploration Agency.

The result should lead to a better understanding of the origin of the ocean on Earth.

Tomoki Nakamura, a professor at Tohoku University, and his teammates analyzed 17 grains of sand from Ryugu using systems including the large synchrotron radiation facility SPring-8 in Sayo, Hyogo Prefecture, U.S. western Japan.

The team examined the sand grains, from 1 to 8 millimetres, in detail, looking at their internal structures, mineral composition, hardness and other properties.

[Copyright The Jiji Press, Ltd.]

Jiji Press

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