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The universe is all worked up
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Images of the month | ||||
| automatic translation | "It is better to see once than hear a hundred times." | |||
March 2009 | ||||
| The Aral Sea is situated in Central Asia, on horseback on two countries, Kazakhstan and Uzbekistan. This big inner sea withdrew in several separate reservoirs, it was transformed into a salt lake, shrinking regularly during the second half of the 20th century. Waters of two main rivers feeding the sea, the Amu-Darya in the South, and the Syr-Daria in the northeast, served for irrigating the cotton plantations of the region, what transformed the Aral Sea into a desert called Deserted of the Aralkoum. Of the Aral Sea there are in 2009 only 2 lakes, one in the South and the other one even smaller in the North. The retreat of the Aral Sea added in some years of successive droughts, left ports in full lands annihilating the business of the fishing. The bed of the Aral Sea occupies a surface about 65 000 km2, more half of which was transformed into desert. The constant winds and the poor vegetable cover provoke an intense erosion creating small dunes of sand from 5 to 6 km, very fast. Sandstorms, more and more frequent on the region of the Aral Sea, have grave impacts on the fauna and the flora. | The major stake for the 50 million persons of the region, is to dedicate means to a rational management of the water in all this pond. The big brown spot in the South of the Aral Sea is the delta of the Amu-Darya, the region of extensive agriculture. Uzbekistan, country of 27 million inhabitants is the second world cotton exporter after the United States today. The cotton is its first economic resource. The rehabilitation of the Aral Sea began in 2001 with the construction of a work in concrete 13 km long allowing to contain durably waters of Small the Lake Aral. Waters of the part the North of the Aral Sea rose of 12 m to 42 m. Its surface increased by 30 %. The salinity came down again at an acceptable level for the reintroduction of the disappeared sorts of fishes. The fishing started again and we assist a climatic revival with an effect of dew and the more frequent rains.
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December 2008 | category : images et photos | |||
| This image of 1st December 2008, offers beautiful colors of a spectacular sunset Australian surrounded by clouds reflected in water from Brisbane on the central coast of New South Wales, Australia. There is also a remarkable conjunction of the crescent Moon, Venus and Jupiter close together playing to form a smiley in the twilight. The astronomer Mike Salway took these two bright planets and the Moon around skygazers, along a soggy shore, braving the rain and mosquitoes. This perspective, which dominates the horizon of the southern hemisphere after sunset, watch the brilliant Venus at the highest point in the sky with Jupiter a little lower on his right and the Moon smiling. | Everywhere on the planet photographers had the opportunity to take this unusual combination, but it should be in the right place at the right time to successfully taking the image below against.
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October 2008 | category : images et photos | |||
| The Arctic polar cap of Mars is virtually cut in two by a huge bleeding called Chasma Boreal. We see in this image several layers of dust cascading down to the great Chasma. The facade of the cliffs, are a red surprising, there is no comparable places on Earth. The white areas are certainly covered with water ice. |
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September 2008 | category : images et photos | |||
| The STEREO spacecraft observed this eruption on September 29th 2008, in the wavelength of UV, 304 angstrom. The Prominences are clouds of relatively cool gas suspended above the sun and controlled by magnetic forces. This prominence, shown on the image here against, is mounted and fell cascade for several hours, like a flag flying in the wind, then it broke into pieces to go into space. The prominence is composed of ionized helium to about 60 000 degrees Kelvin. The satellites of the STEREO mission revolve around the sun almost aligned with the Earth's orbit. One, called "Forward" moves between the Earth on its orbit, while another called "Back" follows our planet in its orbit. |
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August 2008 | category : images et photos | |||
Image of Tropical Storm Edouard in the Gulf of Mexico. |
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July 2008 | category : images et photos | |||
The most detailed image ever taken of the dark clouds of the Carina Nebula. | NGC 3372 is known as the Great Carina Nebula. Eta Carinae, the most energetic star of the nebula, was one of the brightest stars in the sky during the 1830s, but faded radically.
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January 2008 | category : images et photos | |||
The Messenger probe use the gravitational assistance of the Earth and Venus who hastened to each pass over these planets to reach Mercury in January 2008. |
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November 2007 | category : images et photos | |||
ISS (International Space Station), conduct experiments in many scientific fields. |
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October 2007 | category : images et photos | |||
The probe "Kaguya, launched on 14 September by the Japanese rocket H-2A, entered the attraction of the Moon in early October and has since stabilized in a circular orbit for observation, about 100 remote km of the moon. |
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September 2007 | category : images et photos | |||
Phobos, one of two moons of Mars are made of carbon-rich rocks and ice. |
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June 2007 | category : images et photos | |||
| Focus on Enceladus, the moon of Saturn ice shows here all its splendor. In the foreground, the bright white of Enceladus stands out immense shadows of Saturn's rings as seen in the background. This photo was taken on 28 June 2007, at a distance of about 291 000 km (181 000 miles) by the Cassini spacecraft, using his camera to narrow during its mission 'Equinox '. The perfectly round white face of Enceladus, measuring 504 km in diameter (313 miles). |  Magnificent focus of Enceladus and its ice. Image credit: NASA / JPL / Space Science Institute. |  | ||
May 2007 | category : images et photos | |||
| The stunning images of Saturn's south pole show unusual and complementary aspects of the region through the instruments of the Cassini probe. The images of infrared mapping spectrometer visual show that the region is full constellation of thunderstorms. Such details as imaging cameras are shown in closeup, the resolution is 208 km per pixel. |
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October 2006 | category : images et photos | |||
Gullies in Terra Sirenum on the planet Mars. |
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The universe is all worked up
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| Astronomy - october 15th 2007 |
