An artists impression of the European Extremely Large Telescope shown together with a silhouette of the London Eye for scale. The construction of the world's largest, most powerful, and most sensitive optical telescope is in progress. Manufacturers are the European...
Betelgeuse is a star that represents the shoulder of a hunter named Orion. This is a red giant star. It is said to be 1400 times the size of the Sun. That is, if Betelgeuse is brought in place of...
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