The most important mysteries of the solar system

The earth is the home of humankind. Can be considered and the Solar system. After all, we already went to the moon, our spacecraft has reached other planets. It would seem that about the area of Land we need to know everything.

Actually mankind for decades trying to unravel such close and such mysterious phenomena. Describe below of the top ten mysteries of the Solar system.

The Oort Cloud. The main issue regarding this site is that whether there is any? This is perhaps the chief mystery of our Solar system. Scientists have suggested the existence of clouds only hypothetically, but this piece of the Universe no one has seen. The theories then formed comets with long orbital period. Scientists can only assume that the Oort cloud is at a distance of 50-100 thousand.e. from the Sun. The bounds of this object lying on the very edge of the Solar system. The billions of bodies are from the cloud is bound by gravity to the Sun. Continue reading

Comets from the far reaches

Astronomers have determined that comets from the far reaches of our Solar system do not threaten the Earth. The discovery was made after computer modeling of the behavior of these objects. Article researchers appeared in the journal Science, and its summary is provided in the press release of the University of Washington, where the authors of the article.

In their study, the astronomers modeled the penetration into the inner part of the Solar system comets from the Oort cloud — a region whose borders, according to various estimates, are spaced from 2 to 50 thousand astronomical units. The temporal interval was modeled astronomers, was about 1.2 billion years.

Previously, scientists were convinced that the majority of comets with a long period (from 200 to millions of years) period of treatment, currently there are about 3200, with the outer part of the Oort cloud. It was believed that comets from the inner part of the cloud protects the Solar system gravitational field of Saturn and Jupiter, which do not allow these bodies to “annoy” the Earth and other small planets. Continue reading

Comets threaten to arrange in the Solar system chaos

If the Sun will increase its luminosity by a few percent, the ice will begin to evaporate and jets of gas will give the comets the reactive acceleration.

“Graveyard of comets”, are found in the asteroid belt between the orbits of Mars and Jupiter, can make a real chaos in the Solar system when the Sun will Shine a little brighter. Astronomers can’t predict which direction will fly the heavenly bodies, when their trajectories change .

“We found a graveyard of comets. Imagine all these asteroids within the belt orbit the Sun for millions of years and show no signs of activity. We found that the majority of them are “dormant” comets that may yet come back to life if their solar “energopac” will be increased by couple of percent,” says Ignazio Ferrini of the University of Medellin (Colombia).

Previously it was thought that most comets in the Solar system is in the so-called Kuiper belt beyond the orbit of Neptune. However, it was discovered that several hundred dormant in the asteroid belt, moving in relatively stable orbits between Mars and Jupiter. Since they don’t show their tails and not move on watanasiritham, the scientists called their gathering the “graveyard of comets”. Continue reading

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