JWST: mirrors and masked men

Description: JWST: mirrors and masked men
Image Courtesy: Ball Aerospace

NASA: Who are the masked men? There are technical staff of the Aerospace Ball and the NASA of the Center of Spatial Flight Marshall of beams - x and Facilities Cryogenic, of course, testeando the principal segments of the mirrors of the Spatial Telescope James Webb (JWST).

Programmed for the throwing in 2014, the JWST is optimized for the exploration in infrared of the nearby universe, using a principal mirror of 21.3 feet in diameter, composed of 18 hexagons.

In the photo, a group of mirrors of the JWST is being prepared for testear that expire exactly with the needs. The suits and masks of the technical staff can help to prepare the contamination in the surface of the mirrors.

In the Cryogenic Facilities and of X-rays Marshall, the mirror is proved in the big circular camera after evacuating the air and cooling the camera to 400 degrees Fahrenheit (only 60 grades on the absolute zero). Extremely low pressure and temperature, the conditions of the space simulate it. These test will continue during the following 18 months.

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Major harmful ozone emission through the fault of the vehicles impelled with ethanol

Description: The ethanol promoted often like a clean and renewable fuel, possibly would worsen the problems of health caused by the ozone
Photo: Beth McConnell

The ethanol promoted often like a clean and renewable fuel that it might help to "wean" to the world of the oil, possibly would worsen the problems of health caused by the ozone, compared to the problems of this class today promoted by the gasoline, especially in winter, according to a new study directed by investigators of Stanford's University.

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The greenhouse effect of the soot accelerates the thaw of the Himalayas

Description: Expedition in the Himalayas
Photo: Institute of Tibetan Plateau Research, chinese Academy of Sciences

The soot deposited in the Tibetan glaciers has contributed significantly to the retreat of not polar masses of ice bigger than the world, according to a new joint investigation of scientists of the NASA and the Academy China of Sciences. The soot absorbs the incidental solar radiation and can accelerate the melting when it settles on the snow in sufficient quantities.

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Watch Greek S03E18 Camp Buy Me Love free

Air pollution, rapid changes of wind, and the force of the thunderstorms

Description: The process of rapid change in the speed and/or direction of the winds between two consecutive levels high, it affects to the way in which the pollution contributes to the isolated thunderstorm clouds
Photo: UCAR/Carlyle Calvin

A new climatic investigation reveals how the process of rapid change in the speed and/or direction of the winds between two consecutive levels high, it affects to the way in which the pollution contributes to the isolated thunderstorm clouds.

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To Centaur

Description: To Centaur

Image Credit and Copyright: Tim Carruthers

NASA: To only 11 millions of years further away, To Centaur there is the active galaxy nearest to the planet Earth. With an extension of 60.000 light years, this peculiar elliptical galaxy also known as NGC 5128, appears in this image.

To Centaur it is seemingly the result of a collision of two galaxies, with the result of a stirred fantastic one of groups of stars and balls of black dust.

Close to the center of the galaxy, to the left the cosmic remains are consumed regularly by a central black hole with one trillion times the mass of the sun. As in other active galaxies, this process generates waves of radio, x-rays and beams gamma.

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Binary black hole in 3C 75

Description: Binary black hole in 3C 75
Credit: X-Ray: NASA / CXC / D. Hudson, T. Reiprich et to. (AIfA);
I remove: NRAO / VLA / NRL

NASA: What happens in half of this massive galaxy? in the image two brilliant stelas arise from the center, the x-rays in blue and the waves of radio in rose, expressed by the co-orbitantes supermassive black holes that the source of giant radio form 3C 75.

Surrounded by thousands of million beams x expressing gas, and particles relativistas exploiting like rockets the black holes supermassively are separated by 25.000 light years.

The nuclei of these two emergent galaxies are the group of galaxies Abell 400, to 300 million light years of distance.

The astronomers conclude that these two supermassive black holes are tied by the gravity in a binary system, partly because the jets of the rockets show seemingly that his movement is common, and his speed is 1.200 kilometers per second.

These two spectacular cosmic mergers it has in common a big quantity of groups of galaxies in the area in the distance of the universe. In his final stages, the unions they hope that they generate intense resources of gravitational waves.

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The rastos of the clouds illuminated in Greece

Description: The rastos of the clouds illuminated in Greece
Credit and Copyright: Chris Kotsiopoulos

NASA: It can seem that it is day, but it is night. Those astonishments you infuriate oranges, there can seem to be beams from the west sun, but there are thin clouds illuminated by the Moon and that quickly will leave towards the distant horizon.

The thickness of the clouds in the distant left can seem to have many glasses, but at present there are a few clouds taken in numerous separated exhibitions. What is sure truth, is that the image was taken in two hours, two weeks ago, in Sounio, Greece.

Also, these lines are the tracks of the stars that are left in his draft on the polar star above to the right. But: What sound these constructions of the fund? It can it looks like a famous ancient construction, but small built desert church is at present last century.

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