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1 ene 1992 año - Aleksander Wolszczan 1992

Descripción:

In 1992, Aleksander Wolszczan used a pulsar two reveal two other planets leading to the discovery of other planets outside the solar system.

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History of Astronomy Timeline

ByGABRIEL XIONG

26 nov 2019

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1 ene 1992 año

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~ 33 years ago

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