stars

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When a star that is much more massive than out sun gets to the end of it's like it explodes into a Super Nova. A Super Nova can outshine and entire galaxy and radiate stellar matter at speeds up to 10% the speed of light. This particular Super Nova was given the name SN 1572. SN 1572 is also known as Tycho's Supernova, Tycho's Nova, "B Cassiopeiae" (B Cas), or 3C 10. This Super Nova is located in the constellation Cassiopeia. It is one of one of about eight supernovae visible to the naked eye in historical records. It burst forth in early November 1572 and was independently discovered by many individuals.
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Via: NASA
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The same phenomenon that causes a bumpy airplane ride, turbulence, may be the solution to a long-standing mystery about stars' birth, or the absence of it, according to a new study using data from NASA's Chandra X-ray Observatory.

Galaxy clusters are the largest objects in the universe, held together by gravity. These behemoths contain hundreds or thousands of individual galaxies that are immersed in gas with temperatures of millions of degrees.

This hot gas, which is the heftiest component of the galaxy clusters aside from unseen dark matter, glows brightly in X-ray light detected by Chandra. Over time, the gas in the centers of these clusters should cool enough that stars form at prodigious rates. However, this is not what astronomers have observed in many galaxy clusters.
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