A brief history of exoplanets

As far back as the 16th century, people have speculated on the existence of planets orbiting other stars. For much of human history, however, and right through to the last decade of the 20th century, the answer to this cosmic conundrum eluded even the most learned scientists. Then, in 1992, astronomers at the Arecibo ObservatoryContinue reading “A brief history of exoplanets”
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