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NASA's Lunar X-ray Observatory has captured images of cosmic events,

                                  
The Chandra X-ray Observatory (CXO), launched by NASA on July 23, 1999, is a flagship-class space telescope. Chandra X-rays captured many stunning images of cosmic phenomena over its two decades of work.And the most iconic supernova remnant of these is Cassopia a.  Located at a distance of about 11,000 light years from our Earth, is A, such as a shining debris field after a massive star burst, called A.  When a star's fuel runs out, it collapses on its own, and is known as a supernova.It is seen as one of the brightest objects in the universe.  The same astronomers believe that the supernova explosion occurred around the year 1680. 

Launched on August 26, 1999, the Chandra X-ray detected several images, near the center of a complex pattern of debris spreading from a broken star, and for the first time a dense object called a neutron star, it called a supernova  Also left behind.The data from the Hubble Space Telescope have been combined with the X-ray data "Great Observatory," which shows delicate filamentary structures of cooler gases with temperatures of about 20,000 degrees Fahrenheit.The blast wave in an outlying region is represented by a case of blue.  Shock waves occurred, the blast wave is similar to the sonic boom generated by a supersonic aircraft, the shock wave produces X-ray emission, the same explosion wave moves outward at a speed of about 11 million mph, it is nearby.  Collides with the material, and slows down, producing a second shock wave - called "reverse shock" - it travels backwards.  

A team of astronomers at NASA's Goddard Space Flight Center reported reverse shocks at Cas A, which appear to be moving at speeds of 5 to 9 million mph.  An unusual reverse tremor is likely caused by a blast wave of material surrounding the remains, as the team of astronomers discuss in the 2018 study.Told that the blast causes the wave to slow down more quickly, which causes the reverse shock to reactivate, making it much faster.

These shakes also accelerate moving particles, reaching about 30 times the energies of LHC, a long collection of lunar discoveries over the past 20 years. And in addition to finding the central neutron star, the Chandra data have revealed the distribution of elements necessary for life ejected by the explosion.

Between 1951 and 1989, California scientists, using photographic plates, in optical light from Cas A.Created a historical record, digitized access to a Sky Century Harvard (DASCH) center at the Center for Astrophysics  Was digitized by grams.

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