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Water in the world older than the Sun.
Sun, 4, 6 billion years old, is the oldest object in our solar system, but it turns out that most of the water on Earth More starshe
new chemical model of the early solar system found that nearly half of all the water on Earth came from interstellar ice when the Sun formed. This means that the moisture in our solar system appeared not due to local conditions in the protoplanetary disk, but rather is a regular feature of the formation of planets. This raises the hope that in the universe besides us life could exist.
To determine the age of the water in the solar system, researchers have focused on the study of hydrogen in deuterium, known as "heavy hydrogen" because it has an extra neutron. Interstellar ice has a very high proportion of deuterium to hydrogen since it was formed in very low temperatures. Scientists already know that by studying the composition of comets and asteroids.
The level of deuterium in water solar system is growing ever since the Sun formed. Therefore, to determine whether the Sun independently produce the current level of the isotope, the researchers created a computer model that takes us back to the start of the solar system and does not include inherited deuterium.
However, this model was not able to produce the same amount of deuterium, which is found today. Therefore, researchers estimate that from 30 to 50% of water in our solar system was part of the ancient molecular cloud that gave birth to the sun and planets. The scientists published their discovery in the journal «Science».
If the formation of our solar system was typical for space standards, the discovery shows that the interstellar ice is involved in the formation of and from the nearby planetary systems. And because all life as we know it depends on the water, this news increases the chance that other planetary systems have everything to sustain life.
Paraphrasing the "Poem of the Ancient Mariner 'by Samuel Coleridge:" Water, water everywhere, on every planet there exists what to drink ».
via factroom.ru
new chemical model of the early solar system found that nearly half of all the water on Earth came from interstellar ice when the Sun formed. This means that the moisture in our solar system appeared not due to local conditions in the protoplanetary disk, but rather is a regular feature of the formation of planets. This raises the hope that in the universe besides us life could exist.
To determine the age of the water in the solar system, researchers have focused on the study of hydrogen in deuterium, known as "heavy hydrogen" because it has an extra neutron. Interstellar ice has a very high proportion of deuterium to hydrogen since it was formed in very low temperatures. Scientists already know that by studying the composition of comets and asteroids.
The level of deuterium in water solar system is growing ever since the Sun formed. Therefore, to determine whether the Sun independently produce the current level of the isotope, the researchers created a computer model that takes us back to the start of the solar system and does not include inherited deuterium.
However, this model was not able to produce the same amount of deuterium, which is found today. Therefore, researchers estimate that from 30 to 50% of water in our solar system was part of the ancient molecular cloud that gave birth to the sun and planets. The scientists published their discovery in the journal «Science».
If the formation of our solar system was typical for space standards, the discovery shows that the interstellar ice is involved in the formation of and from the nearby planetary systems. And because all life as we know it depends on the water, this news increases the chance that other planetary systems have everything to sustain life.
Paraphrasing the "Poem of the Ancient Mariner 'by Samuel Coleridge:" Water, water everywhere, on every planet there exists what to drink ».
via factroom.ru
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