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9wJyD TIL the "Wow! Signal", a 72-second radio signal detected in 1977, is the strongest candidate for an alien transmission ever received Its frequency (1420 MHz) was near the hydrogen line, ideal for interstellar communication, and its intensity was 30 times stronger than background noise. Despite numer
7rXe7 TIL of the Zoo hypothesis. Life is common in the Universe, but extraterrestrial civilizations intentionally avoid communication with Earth to allow for natural evolution and sociocultural development, and to avoid interplanetary contamination, similarly to people observing animals at a zoo.
RAX8 TIL that KIC 8462852 is a star that might contain advanced civilization, as there so far as been no other explanation for it’s behavior.