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Friday, March 8, 2013

Violent collision shaped into Vesta


The new model is based on computer simulations of collisions between asteroid Vesta separated and a couple of rocks from 32 km in diameter in the last billion years. The results suggest that cosmic impacts caused Vesta's crust to melt and then re-form, with its thicker crust than can be explained by typical rock layers, the scientists said.

Collisions carved two large impact craters on the surface of Vesta. The oldest, Veneneia, formed about 2,000 million years. With a diameter of 395 km, the crater covers nearly three quarters of the diameter of Vesta Ecuador. Covering 90% of the diameter of Vesta, is one of the largest craters in the Solar System.

The most accurate calculate of the Universe


Astronomers explore the scale of the universe by first calculating the distance to nearby objects, using them as reference points (standard candles). The close observation of a rare type of double star has allowed a team of astronomers presume a much more accurate value for the distance to LMC: 163,000 light years.

Astronomers, first time directly observed a planet


An international Astronomers team lead by Sascha Quanz from ETH Zurich in Switzerland examined the gas and dust disk around the young star HD 100546, which is located at a distance of only 335 light years in relative closeness to our solar system. The researchers were surprised when they found evidence of a planet that - surrounded in the disk of theme around the young star - is still in the development process. This possible planet would be a gas giant similar to Jupiter in our solar system.

Thursday, March 7, 2013

Spaceship Dragon docked to the ISS


Spaceship Dragon, built by a private company SpaceX, safely reached the International Space Station - even though a day later than expected.

After the launch of the ship begin to experience serious problems: three of its four engines orientation refused to work because of a failure in the fuel system, and the operators had to spend several hours trying to revive them. It ended well, and the "Dragon", though late, but made friends with the ISS was successfully "caught" by the robot arm Canadair and docked to the station. 

Wednesday, March 6, 2013

A comet will pass very close to Mars


Newly exposed comet will pass very close to Mars. It is possible and collision.

Comet C/2013 A1 - the first of astronomers open this year. Its orbit is estimated to take place very close to Mars in October 2014 a comet fly only 37 000 km from the Red Planet. This in itself would be a significant astronomical event, 

Tuesday, March 5, 2013

Cold bed in the Sun


Observations with the infrared Herschel Space Telescope discovered the star Alpha Centauri A strange "cold bed", exactly the same as that of our sun.

Our star is composed of six layers: the core, where fusion reactions occur, areas of radioactive transfer, convective zone, photosphere, chromospheres and corona. 

Sunday, March 3, 2013

Restoration Curiosity rovers


Last Thursday (February 28) fails, in which the rover operators were forced to switch from the main system to a back-in and break up research Curiosity.

On Saturday, the rover out of the "safe mode” and on Sunday again mobilized antenna with high gain. One of the options for further work, the operator in question Curiosity,