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Astronomers spot record-breaking radio signal that took 8 billion years to reach Earth: "Mind-blowing" - CBS News
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Mysterious radio signal detected from exoplanet in deep space: Could give new 'way to examine alien worlds'
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Repeated signals from the center of the Milky Way could be aliens saying hello, new study claims | Space
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radio waves: A secret alien message: A powerful radio signal from the edge of the universe has stunned astronomers - The Economic Times
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