An international team of scientists discovered water near an infant star thousands of light-years away — and they think Earth’s water came from the same place.
, suggest the water we drink, bathe in, originates from the space between solar systems, billions of years before the birth of our sun.
HDO forms when, instead of an oxygen atom bonding to two hydrogen atoms, it attaches to one hydrogen and one rare deuterium atom. Deuterium is like hydrogen but slightly heavier, due to its nucleus carrying an extra neutron. Their breakthrough happened when, for the first time ever, the team managed to detect water among the swirling, preplanetary disk of dust and matter around a newly-formed star. Named V883 Orionis, their target can be found in the Orion constellation, roughly 1,305 light-years from Earth.
This interstellar space mostly contains hydrogen, with a sprinkle of helium and a minuscule dash of deuterium, Murray continued — all elements formed in the aftermath of the Big Bang. However, there also exists oxygen, carbon, nitrogen and myriad other elements spat out by neighbouring stars as they undergo fusion.
According to Tobin and his team’s findings, the ice from the cloud is the same water distributed throughout comets and planets.
France Dernières Nouvelles, France Actualités
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