Scientists are observing the emergence of a new Earth.
A planet like ours is formed at a distance of about 424 light years in a huge belt of warm dust. Photos of the planet were obtained using Spitzer, NASA space telescope.
Currently, in a system known as HD113766, dust particles gather together to create stones, and these stones, when colliding, form even larger bodies, some of which already reach the size of our Moon.
At the age of 10-16 million years, the solar system of this planet is still in its “adolescent state”, but this is the most suitable age for formation, says lead researcher Cary Liss from the laboratory of applied physics at Johns Hopkins University.
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The huge ring of dust surrounding the two stars of this system resembles the middle of the “habitable zone” where water could appear. Such types of dust belts rarely appear around stars like the sun, and the presence of an outer belt from ice makes it more likely that water is available and, later, life will occur.
The belt consists of rocky compounds similar to those that form the earth's crust, and metal sulfides are very similar in composition to the material found in the earth's core.
It may be 100 million years before the planet is fully formed. It will also take about a billion years before the first signs of life appear there, such as algae. The evolution of complex organisms will probably take another couple of billions of years, but only if the new planet follows the path of the Earth’s development, Liss believes.
The opening of Lissa will be presented next week in the Department of Planetary Sciences of the American Astronomical Society
Source: www.vz.ru/news/2007/10/4/114556.html
Currently, in a system known as HD113766, dust particles gather together to create stones, and these stones, when colliding, form even larger bodies, some of which already reach the size of our Moon.
At the age of 10-16 million years, the solar system of this planet is still in its “adolescent state”, but this is the most suitable age for formation, says lead researcher Cary Liss from the laboratory of applied physics at Johns Hopkins University.
')
The huge ring of dust surrounding the two stars of this system resembles the middle of the “habitable zone” where water could appear. Such types of dust belts rarely appear around stars like the sun, and the presence of an outer belt from ice makes it more likely that water is available and, later, life will occur.
The belt consists of rocky compounds similar to those that form the earth's crust, and metal sulfides are very similar in composition to the material found in the earth's core.
It may be 100 million years before the planet is fully formed. It will also take about a billion years before the first signs of life appear there, such as algae. The evolution of complex organisms will probably take another couple of billions of years, but only if the new planet follows the path of the Earth’s development, Liss believes.
The opening of Lissa will be presented next week in the Department of Planetary Sciences of the American Astronomical Society
Source: www.vz.ru/news/2007/10/4/114556.html
Source: https://habr.com/ru/post/14713/
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