Scientists tracked a mysterious signal in space. Its source was closer to Australia
![In 2019, the Parkes radio telescope in Parkes, Australia, detected a strange signal that has since been explained.](https://media.npr.org/assets/img/2021/10/28/gettyimages-120293167_wide-2c4e08e51b332b7f6bc68121f8a9fdc3be8908eb.jpg?s=600)
A mysterious signal that appeared to be emanating from Proxima Centauri put scientists on a hunt to track down its source. What they found was that it had a decidedly earthbound origin.
(Image credit: Yury Prokopenko/Getty Images)
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* This article was originally published here