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For almost 12 years, the Chandra space telescope has been observing the X-ray signatures of high-energy objects. The “Hand of God” nebula, 150 light-years long, is formed by hot gas spewed from a pulsar, or rapidly spinning neutron star.
Chandra excels at capturing chaos. An astronomical feature called Cas A, in the constellation Cassiopeia, is a blast of debris expanding at millions of miles an hour; it was fired from a supernova that became visible on Earth only about 300 years ago.