The origin of the solar system
The sun and the solar system was formed about 4.5 billion years ago. The solar system originated from a cloud, composed of gas and dust particles moving. Under the influence of its weight of it formed a disk in the center of which formed the Sun .
Gradually within the disk began to form solid materials. They faced each other, whereby a large celestial body. Their size corresponds to the existing planets. Inside the nebulae, where the temperature was high enough to form rocky planets. Far from the center formed the giant planets, they contain a large amount of ice, and they were surrounded by a thick layer of gas.
Within the Solar system the temperature even higher, and planets formed from rocky debris of the solar nebula. They are in contact with each other, forming a large celestial body. They attract each other by virtue of the power of the law of gravity and give birth to planets of terrestrial group. The atmosphere of the Earth and Venus, the largest among them, tight.
The atmosphere of Mars, a smaller planet is less dense, and mercury. the smallest planet of this group, it is very sparse compared to earth is not readily available. Continue reading
Review of the mission ExoMars-2016
March 14, 2020 the Russian and European space agencies signed an agreement that turned a large-scale European program for the exploration of Mars in a joint project. The program is divided into two stages, the implementation of which is planned for 2016 and 2018. The approach of the first date gives reason to discuss in detail the mission “ExoMars-2016” (ExoMars 2016).
For the first phase of the mission “Eczemas” are mainly responsible of the European space Agency. Russia will provide launch vehicle “proton-M” to launch spacecraft and some scientific instrumentation. Like many automatic stations, “ExoMars-2016” will consist of two blocks, orbital and ground. Is called the orbital module TGO Trace Gas Orbiter, a Satellite to monitor gases. The lander, known as EDM (Entry, Descent and Landing Demonstrator Module the demonstrator inputs, approach and landing), was named in honor of the Italian astronomer Giovanni Schiaparelli. Continue reading
Comets are Solar system bodies having the form of vague objects, usually with pale clot kernel in the center and tail. They are among the most beautiful celestial bodies. hazy Bright shell surrounding a core of hazy, long tail, extending sometimes to half the sky, fast motion among the stars – all this makes comet different from other heavenly bodies. The comet can be observed when a small ice body, called the nucleus of the comet is approaching the Sun at a distance that is less than 4-5.e. warmed by the sun, and it begins to stand out gases and dust that are visible as a result of their illumination by the Sun.
Gases and dust released from the nucleus, creating around him a hazy shell – atmosphere of the comet, components along with the core of the head of the comet. The atmosphere of a comet continuously dissipates in interplanetary space: under the action of radiation pressure and interaction with the solar wind gases and dust are carried away in the direction from the Sun forming the comet’s tail.
Most of the comets in the middle of the head there is a bright star-like “core”, representing the illumination of the Central, most dense zone of true gases around the comet’s nucleus. Continue reading