Wednesday, February 23, 2011

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Subjects What smells the universe? First images

De Jose Manuel Nieves

in Science

In October 2006, NASA launched two spacecraft toward the Sun twins, but each of them headed for the sun king following diametrically opposite directions. The mission STEREO called and was seeking for the first time, a stereoscopic image and full sun, observed at the same time from different angles. Yesterday, after four years, the space agency has met its ambitious goals and has posted the first images

"full" and 3D of our Sun After a joint journey of 470 million km., Both ships have been found, on the opposite side of the Earth's orbit, on the other side of the sun, and have finally finished its primary mission. During their journey, the two probes have been facilitating its control center (the Goddard Space Flight Center in Maryland) valuable information on how it affects our planet, the continuous flow of energy that flows from our particular star.

In 2009, the two spacecraft STEREO mission revealed in three dimensions, the dual structure of coronal mass ejections, which are violent eruptions of matter from the sun, also known as solar storms. These ejections can disrupt communications, disrupt satellites and power grids on Earth.

"says New images NASA said in a statement,

help improve the planning of future missions robotic spacecraft or crew to the solar system. "

" For the first time, "says Angelos Vourlidas meanwhile, a researcher at the STEREO mission, we can see the solar activity at its best three-dimensional".

Since they were launched in 2006, each of the two probes has photographed and filmed in detail half of our star, sent to Earth all the images. Here, researchers have combined the two "views" to create a sphere. It is not, however, conventional photography. In fact, craft instruments have captured the Sun in four different wavelengths (all in the ultraviolet), carefully selected to study specific aspects of solar activity, including flares, Tsunami solar magnetic filaments.


With data from this mission, astronomers can literally fly around the sun without leaving their screens and see what happens beyond the horizon, something that has not been possible. So far, in fact, it was impossible to detect sunspots (the cause of magnetic storms) if they occurred on the far side of the Sun to detect, had to wait for solar rotation itself will show us what was happening on the other side, leaving little time to react.

But that does not happen again. Even the most remote spots and hidden from our direct view may be accessible and not take us by surprise again.

http://www.abc.es/blogs/nieves/public/post/primeras-imagenes-completas-del-sol-7899.asp

ZexonaZ. Things happen.

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