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December 04, 2018 6:35 pm
The asteroid "Bennu", the asteroid probe "OSIRIS-REx" from the US space agency, arrives.
The US asteroid probe & # 39; OSIRIS-REx & # 39; arrived at Bennu, an asteroid located about 150 million kilometers from the Earth at 4am. Osiris-Rex was launched at Cape Canaveral Air Force Base in September 2016 and then traveled 2 billion kilometers over two years to reach the asteroid.
At first, the probe will lower the altitude from 19 to 7 km to study the mbad, speed and shape of the vanu. From here on the 31st of this month, it will bring back the altitude to 2 km and will enter the orbit of Benu. He will explore Benu for a year and a half.
Osiris-Rex, which means "god of the lion" in Egyptian mythology, aims to collect information on organic molecules such as amino acids and extraction of the topsoil of Benu, which can be a index of the primitive solar system. A sample of about 60 grams of topsoil, such as dust and stone, will be collected. Osiris-Rex will spray gaseous nitrogen on the surface of the bouquet for 3-5 seconds to remove topsoil.
There is a reason why NASA chose to use the Benu as a target for exploration. Benoit is an asteroid around the Sun's orbit, clbadified as a threatened asteroid, which crosses the Earth every six years and is at high risk of colliding with the Earth. It is expected to reach 750,000 kilometers on September 23, 2060. At the end of the 22nd century, there is a possibility of collision with the Earth with a probability of 1/2700. It is important to know the density of the vanu in order to predict the impact of the collision with the Earth.
NASA hopes to study in detail the situation immediately after the formation of the solar system through Benoit's exploration. Benoit, whose diameter is 500 m, has an almost constant orbit since the beginning of the formation of the solar system.
It is badumed that the material at the time of formation of the poultry system is preserved. NASA scientists are waiting for Beu's materials to be the key to unveiling the secrets of the early formation of the solar system.
It is black because it contains natural resources such as water, organic matter and metals, and that it contains a lot of carbon. Carbon and organic matter are the components of life. It is estimated that Benoit also has the water necessary for life. The researchers are discovering that they can find clues to solve the origins of life in the solar system.
"As an explorer, we do not escape the most difficult challenges in terms of knowledge," said Rory Glaze, deputy director of the NASA Department of Planetary Science. We are on the verge of a very difficult task: to bring samples that will be the key to the solar system on Earth. "
Osiris-Rex will sample a 2-kg rock sample in 2021, leave the town of Beau and deposit the capsules in the Utah desert, United States, on September 24, 2023.
December 04, 2018 6:35 pm
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