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Saturday, July 23, 2011

Coming soon reveal the mysteries of the Solar System


A scientific survey ship unmanned U.S. space agency (NASA) recently went into orbit around the asteroid Vesta, in order to discover the secrets of solar system formation.
Unmanned spacecraft, Dawn, worth 466 million dollars, was launched in 2007. On 16 / 7 the past, the probe has entered orbit of the asteroid Vesta - the second largest asteroid in the Solar System. Dawn's first task is to reach the asteroid Vesta in order to explore the solar system formed 4.5 How five billion years ago.
Sắp hé lộ những bí ẩn về Hệ mặt trời
After four years of flying through space, NASA's Dawn spacecraft went into orbit around a massive asteroid Vesta. Photo: AP
According to the Telegraph, after a five orbits of the asteroid Vesta, Dawn spacecraft will fly to the dwarf planet Ceres in August 7 / 2012. Both Vesta and Ceres are the pre-planetary dust (protoplanet) - asteroids near full condition to be a planet in the solar system standards. We are in the asteroid belt, between Mars and Jupiter.

The objective of the Dawn spacecraft is to collect enough information about the asteroid Vesta and Ceres in order to help scientists understand the conditions and the formation of the solar system. This spacecraft carries three science instruments to study surface and identification of chemical compounds on the "two of the world remaining in the solar system yet to be discovered."

With iron core and the viability of the lava flows, scientists believe the asteroid Vesta and Earth-like moon than asteroids around them.

Meanwhile, Ceres - the largest asteroid in the asteroid belt - relatively close to Vesta, but formed in different conditions. Dwarf planets have conditions similar to the icy satellites of Saturn and Jupiter. Ceres may contain minerals that carry water and a weak atmosphere.

Previously, a probe was launched into space to study asteroids in the solar system, including NASA's Galileo spacecraft mission to study asteroids before 3 orbit of Jupiter . However, Dawn is the first spacecraft entered orbit of an asteroid in a long time.
Theo VietNamNet

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