Sun's death does not affect the survival of the Earth (Figure).

<P Align=center> hot word: sexy alien beauty of avian influenza </ P> <P> expansion when the sun will swallow the Earth out of all the objects within the orbit, the Earth survived so how likely is it? .Even in the final stage of evolution has long been to own those stars outbreak occurs, burn their nuclear fuel, the subsequent collapse, the line around the galaxy still preserved. .</ P> <P align=center> </ P> <P> latest research data show that the asteroids, planets and even the remnants of the dust disk surrounding the so-called white dwarfs still long - the ultimate experience of their own "life" stage of red giant .stellar rotation. .It was originally thought, dying stars, gravitational radiation and radioactive dust will not leave any opportunity around. .</ P> <P> published in the new issue of "Astrophysics" magazine on the latest research findings, based on number of white dwarf GD 362 spectrum based on the use of this spectrum is set up an extinct volcano in the Hawaiian Islands mauna kea top .on the Gemini North 8-meter-diameter telescope on a high-resolution spectrograph MICHELLE shot. .Observations show that there are accidents in the infrared spectrum of multi Yuguang Zi and excess of calcium in these parameters over almost all of the white dwarf GD 362 known white dwarf, the white dwarf GD 362, there are still high levels of magnesium and iron. .</ P> <P> GD 362 the number of white dwarfs have so much calcium that are constant stream of dust particles, and excess infrared component that best describes a very thin flat-shaped disk of dust and there is less transparent, and its .estimated to reach 100 million meters in diameter. .Disk composed of dust, dust constantly falling on the stellar surface, so that spectra with calcium and other "metal" scene. .</ P> <P> white dwarf is a kind of quality can be compared with the solar mass density of objects, but its diameter 100 times smaller than the sun, so the density of white dwarf stars, millions of times more than normal, its density to 1.06 g / cm 3 ., the internal pressure determined by the electronic state of decay, which is another name for the decay of white dwarf stars. .In fact, the name of the white dwarf is not entirely appropriate name and the first to discover that the star Sirius B and the wave of such river constellation B (they are the hot white dwarf) about the color, but later found the yellow and red cooler white dwarfs. .In general, all of the white dwarf stars in our galaxy roughly 3 to 10%. .</ P> <P> GD 362 mass white dwarf initial estimate of 7 solar masses (this is a very massive stars), but in the short-term instability in the nuclear fuel cycle, "burn out" after the collapse occurred, and almost burst out all the projectile .housing (less than a solar mass), by the ejection of gas - the so-called planetary nebula consisting of red light-emitting clouds in the billions of years to dissipate. .</ P> <P> experts estimate that the white dwarf GD 362 from the beginning from the time the brink of death after about 20 to 50 million years, dust clouds can not be maintained long-term status, while not spread open, so the most likely situation is that ., we now observed relatively long ago a huge "mother" of gravity damage occurs, it at some point too close to dying stars. .</ P> <P> present, in addition to the white dwarf GD 362, we only know that a white dwarf - G29-38 white dwarfs, there is also dust, but dust clouds of low density than white dwarf GD 362 100 times .so. .</ P> <P align=center> Recommended articles: pregnant mummies (Figure) </ P> <P align=center> four well-known history of science dream </ P> <P align=center> revealed! .Zhang fear of violence </ P> <P align=center> change Greenspan Pan Yisheng five women </ P> </ p>.