Motions of a remarkable cosmic structure have been measured for the first time, using NASA's Chandra X-ray Observatory. The blast wave and debris from an exploded star are seen moving away from the explosion site and colliding with a wall of surrounding gas.
from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/06/210624135514.htm
from Latest Science News -- ScienceDaily https://www.sciencedaily.com/releases/2021/06/210624135514.htm
Cosmic hand hitting a wall
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June 25, 2021
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