What is the origin of the ocean on the Earth where the life began? Researchers think that the Earth was formed by the aggregation of a huge amount of dust particles in the circumstellar disk around the Sun during its birth. There is a hypothesis that water ice in the dust at that time is the material of the sea on the Earth. The observation from Subaru Telescope shows that there is water ice in the gas and dust disk around a young star HD142527 toward the constellation Lupus. The ice discovered by Subaru may become the sea on a planet revolving around HD142527 in the future.

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More info: Subaru telescope web page