Chandra space telescope view of NGC 6946 a medium-sized, face-on spiral galaxy about 22 million light years away from Earth. In the past century, eight supernovas have been observed to explode in the arms of this galaxy. Chandra observations have found three of the oldest supernovas ever detected in X-rays, giving the galaxy the nickname of the "Fireworks Galaxy." Credit: Planetpix/Alamy Live News
Chandra space telescope view of NGC 6946 a medium-sized, face-on spiral galaxy about 22 million light years away from Earth. In the past century, eight supernovas have been observed to explode in the arms of this galaxy. Chandra observations have found three of the oldest supernovas ever detected in X-rays, giving the galaxy the nickname of the "Fireworks Galaxy."
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Keywords: -ray, constellation, galaxy, nasa, observation, research, science, square, supernovas, telescope, universe
