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Recent Podcast
A Tour of The Big, Bad & Beautiful Universe with Chandra
A Tour of The Big, Bad & Beautiful Universe with Chandra
To celebrate the 15th anniversary of NASA's Chandra X-ray Observatory, we have released four new images of supernova remnants. These show Chandra's ability to study the remains of supernova explosions, using images that are the sharpest available in X-ray astronomy. The images of the Tycho and G292.0+1.8 supernova remnants show how Chandra can trace the expanding debris of an exploded star. The images show shock waves, similar to sonic booms from a supersonic plane, that travel through space at speeds of millions of miles per hour. The images of the Crab Nebula and 3C58 show the effects of very dense, rapidly spinning neutron stars created when a massive star explodes. These neutron stars can create clouds of high-energy particles that glow brightly in X-rays. The image for G292 shows oxygen (yellow and orange), and other elements such as magnesium (green) and silicon and sulfur (blue) that were forged in the star before it exploded. For the other images, the lower energy X-rays are shown in red and green and the highest energy X-rays are shown in blue. (2014-07-22)


NGC 604 in 60 Seconds

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Narrator (Megan Watzke, CXC): NGC 604 is a divided neighborhood in the galaxy M33, where some 200 hot, young massive stars reside. In this composite image, X-ray data from Chandra are blue, while optical light data from Hubble are seen as red, green and yellow. Bubbles in the cooler gas and dust seen by Hubble have been generated by powerful stellar winds, which are then filled with hot, X-ray-emitting gas. Scientists find the amount of hot gas detected in the bubbles on the right side corresponds to the amount entirely powered by the winds from the 200 massive stars. The situation is different on the left side, where the amount of X-ray gas cannot explain the brightness of the X-ray emission. The bubbles on the left side appear to be much older and were likely created and powered by young stars and supernovas in the past.

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