Publication Date:22.12.2009
Tags:internet, nasa, research, researchers, scientists
Climatologists have determined that global warming is to get to the last bastion of the ice - such scientists called East Antarctic ice sheet, which was considered until recently affected by climate change. Research article appeared in the journal Nature Geoscience, and its brief cites New Scientist.
The new study researchers used data collected by a pair of spacecraft NASA GRACE. These devices were launched from the cosmodrome Plesetsk in 2002, devoted to studying the dynamics of the terrestrial gravitational field.
Downloaded, they said "most detailed available data on the change of the gravitational field in recent years, the computer model, scientists were that East Antarctic ice sheet is currently intensively melts. By their calculations, from 2002 to 2009 range annually lose 5 to 109 billion tons of ice (error calculations extremely large).
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Publication Date:18.12.2009
Tags:nasa, researchers, scientists
Scientists have offered to defend the Earth against dangerous asteroids, providing them with special "tails" of the counterweight. The resulting structure thus resembles weapons Brazilian Indians bolas.
Research article appeared in the journal Acta Astronautica, but its brief cites Wired.
According to the catalog NASA, is currently known about 1000 asteroids that could potentially threaten Earth. Until recently, most dangerous of these objects was considered an asteroid, 99942 Apophis, which, after detecting a collision with Earth is predicted with certainty about 0,027. Later however it became clear that the probability of very overrated.
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Publication Date:16.12.2009
Tags:nasa
Shuttle Atlantis landed successfully in Florida, said the site of NASA. Currently, the team was given orders to withdraw special protective suits and landing.
Atlantis departed the ISS to November 16, 2009. During the time spent in orbit, astronauts made three EVA. The crew installed two large platform with spare parts outside the space complex. On platforms accommodated about 15 tons of materials to be used when the shuttles will stop its work.
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Publication Date:16.12.2009
Tags:nasa, researchers, scientists
Probe "Kassyni" (Cassini) delivered to Earth pictures giant allen Saturn in the visible range and high resolution. Shirin have wonderful educational than two Earth diameters. Nature allen is still not clear. Probe obtained from 55 images was compiled movie, you can look at NASA.
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Publication Date:15.12.2009
Tags:nasa
Air Force, with NASA leading the development of orbital plane, was appointed its first test flight in April 2010. This writes the magazine Air & Space. According to plans made public on the plane will be launched on carrier rocket Atlas V, launched from Cape Canaveral.
As expected, during the first orbital test flight of the aircraft, developed from the 1950's, produced test all onboard systems, including management. Pilotless aircraft developed in different periods under the names of Orbital Spaceplane, Space Maneuver Vehicle, Orbital Test Vehicle, X-37 and X-40 flight will carry out fully offline.
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Publication Date:14.12.2009
Tags:nasa, researchers, scientists, stars
Astronomers were able to prove that mikrokvazary can be a source of high-energy gamma radiation, said at NASA.
Article scientists appeared in the journal Science.
Mikrokvazary a binary system, which include a normal star and black hole or neutron star. The compact object in steals star matter, which falls on it, radiating in different ranges of the electromagnetic spectrum. This characteristic radiation characteristic radiation like quasars - active nuclei of galaxies removed (and hence came the term "mikrokvazar).
As part of the new astrophysics studied object Cygnus X-3, open in 60 of the last century. The system consists of a compact object of unknown (ie, researchers do not know if this neutron star or black hole) and giant stars, which belongs to a class of stars Wolf-Raye. For the latter characterized by high svitymist and temperature on the surface.
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Publication Date:14.12.2009
Tags:nasa, researchers, scientists
Probe "Kassyni" were able to discern the aurora on Saturn. This was reported in the press release on the project. With several hundred photos taken probe, scientists have assembled a small film, available here.
Aurora formed around the magnetic poles of planets, when charged particles of cosmic rays moving along the power lines of the magnetic field of the heavenly body reaches the atmosphere. Similar phenomena can be observed on Jupiter, Saturn, Earth and some other planets of the solar system.
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