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" NASA announced today that it has found the Milky Way&amp;#039;s youngest supernova remnant. The remnant, dubbed G1.9+0.3, occurred near the center of the galaxy and is less than 140 years old--approximately 200 years younger than the previous record holder, Cassiopeia A. &amp;quot;Now, we can examine remnants at a stage that we&amp;#039;ve never seen them before,&amp;quot; said Dr. Stephen Reynolds of North Carolina University, who studied the object with the agency&amp;#039;s Chandra telescope. G1.9+0.3 was first discovered by David Green at the University of Cambridge in 1985, who used the Very Large Array (VLA) to take radio images of the remnants. In 2008, under the x-ray of the Chandra telescope, the remains of this great ball of star were found to be rapidly expanding--16 percent larger than in 1985--which meant it was much younger than previously thought. According to Reynolds, no other object in the galaxy has properties like G1.9+0.3, and its unprecedented expansion speeds and highest electron energies will provide more fodder for scientific study. The discovery brings us one step closer to understanding how we--and the galaxy--came to be, because young supernovas are still dominated by the chemicals that made stars explode, said Dr. Robert Kirschner, a Harvard supernova expert. &amp;quot;The 100-year explosion is probably very much like the one 5 million years ago before the sun was formed,&amp;quot; he said. &amp;quot;The calcium that&amp;#039;s in your bones, the iron in your blood, came from a supernova that exploded before the sun was formed. It seems reasonable for us to want to know how these things get formed when stars explode.&amp;quot;  Most supernova explosions we know about are 10,000 years old, explained Kirschner. &amp;quot;You don&amp;#039;t see the actual shredded star,&amp;quot; he said, so younger supernovas fill an important gap in knowledge. &amp;quot;[G1.9+0.3] is a stellar death, and the corpse is still warm,&amp;quot; said Kirschner. &amp;quot;You&amp;#039;re actually getting to see the rock that made the splash, not the wave that&amp;#039;s going out into the pond.&amp;quot;  RELATED STORIES * FUTURE OF SPACE: Top 5 Overlooked Space Telescopes  * HOW IT WORKS: NASA&amp;#039;s Phoenix Lander Ready for Work on Mars  * REVIEW: Gadget Puts Radar-Gun Planetarium in Your Hand   "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.popularmechanics.com/space/deep-space/a12058/4263625/>