Above is an exploded star that created a very strangely shaped nebula that is known as Kepler's supernova remnant. The stellar explosion that created the cloud was seen in 1604 and has been visible ever since. It is located in the constellation Ophuichus and was one of the subjects of study of Johannes Kepler, yet without a telescope. He looked for a reason for why it looked this way but he was unable to understand it at his time. Currently with the new technology it is not difficult for astronomers to understand the reasons for the supernova and the cosmic cloud.
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