Earth's water may be older than the sun

Water is the source of life. But you know what? We drink water every day may also older than the age sun! A recent study American magazine "Science" published on the 25th, said as many as half of the water had been formed as early as possible before the solar system was born on Earth.  (Ray Ban Wayfarer II Sunglasses)
     For a long time, the presence of water in the solar system are two main sources of controversy, one is in the sun during the formation of ionization by cosmic rays and other ways to form water, and the other one is early in the 4.6 billion years ago, the birth of the sun, water already exists, it comes from the interstellar medium. The latest study provides evidence for a second opinion.
     Participated in the study, University of Michigan Department of Astronomy postdoctoral 杜福君 to Xinhua News Agency correspondent, said: "The Earth has a large part of the water from the interstellar medium, so your cup of water may be more ancient than the sun."
     Researchers analyzes the ratio of water under a variety of environmental formed hydrogen isotopes deuterium and hydrogen between heavier.
     杜福君 said that if the water is formed in the cold environment of the interstellar medium, the abundance of deuterium to hydrogen ratio will be higher, up to about 1%; while if it is hotter environment during the formation of the solar system formed, then the deuterium the abundance of hydrogen will be lower than the close to about 0.002%, but the actual observations comets, planets, meteorites and Earth's oceans is generally somewhere between these two extremes, such as the Earth's oceans in both abundance ratio is 0.016%.

             The Author: Michael
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