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Thursday, June 7, 2012

The Star conflict will be with Andromeda


Shock will grow a new galaxy, which sum the mass of the Milky Way and Andromeda, where the Sun, according to observations made ​​during the last five years with the Hubble Space Telescope. The vast majority of stars survives the impact, but will be in different orbits about the center of the galaxy. The Sun, according to simulations from the Hubble observations, blown away in the quiet region of the Milky Way where you are now and remain on the periphery of the new galaxy, as the authors have announced the investigation in a wheel press organized by NASA.

Wednesday, June 6, 2012

An elliptical spiral galaxy changed

The U.S. space agency NASA captured the evolution from an elliptical spiral galaxy, a finding that will help to understand galaxy evolution. With help of the Galaxy Evolution Explorer from NASA, the researchers found how the galaxy NGC 3801 is losing some of the cold gas inside symptom of this change. It has long been known that gas-rich spiral galaxies like our Milky Way are contracted to create elliptical galaxies as observed in the study, with a small population of stars.The process that guides the great transformation of young galaxies spiral to elliptical galaxies is the rapid loss of cold gas, which serves as fuel for the formation of new stars. Experts believe they have found that feature in the NGC 3801.

How can A Stars is growth


Spitzer will present significant information on the structure and growth of stars and the circumstellar medium (surrounding the star). The discovery and characterization of circumstellar disks of gas and dust, signs of extra-solar planetary systems is one of the most important scientific goals of the Spitzer mission

Molecular gas
The giant molecular clouds are composed primarily of hydrogen, are the reserve materials from which stars form. 

Describe the Spitzer Telescope


About The Spitzer telescope is a reflector of lightweight Witchery-Chretien. Weighs less than 50 kg and is designed to operate at an extremely low temperature. The telescope has a hole of 85 cm in diameter. All parties except the support of the mirror are made of lightweight beryllium. Beryllium is a very strong material that works well in the construction of space telescopes infrared, because has a specific heat low to very low temperatures. The telescope is attached to the upper shell of the Crystal cooled by steam, which maintains the science instruments too cold.

Spitzer Space Telescope Technology


About the three main instruments of Spitzer and this Spacecraft has to be cooled a few degrees above absolute zero to function properly, and the spacecraft needs to operate at room temperature, sometimes these two main components are referred to as the portions "cold" and "warm" the Observatory.The following pages will give an overview of the technology that makes possible the science of the Spitzer mission.

From the Hubble Space Telescope the smaller wavelength infrared


Providing wavelength coverage from 3 to 180 microns, Spitzer is an important addition to scientific Hubble Space Telescope (English) and the Chandra X-Ray Observatory (English). The smaller wavelength infrared (near-infrared) can see through regions heavily obscured by dust, so that astronomers can study newborn stars. The long wavelengths (far infrared) are very useful for studying the distribution of dust in the Milky Way, an important ingredient for the formation of planets and stars
About 80% of Spitzer observing time will be available to the wider scientific community, through a contest organized observing proposals by the Spitzer Science Center.

Planets


Spitzer will revise some of the known planets and their moons, and comets, asteroids and dust spread throughout the solar system. The Centre will employ a significant portion of his time studying circumstellar disks (that surround the stars) of dust and gas found in the nearby stars and thought to eventually form planetary systems 'extra solar' (outside our Solar System) .