Wow Signal 1977: The 72-Second Burst That Still Defies Explanation
On August 15, 1977, astronomer Jerry Ehman circled six characters on a radio telescope printout and wrote 'Wow!' — a annotation that still defines humanity's search for extraterrestrial intelligence…
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🌌 🧪 For two decades now, #astronomers have been recording short-lived extremely energetic radio signals dubbed fast radio bursts. ✍🏼 New
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