What is the prevailing opinion among astronomers about the most plausible explanation for the Wow! signal? I was just reading that Jerry Ehman, the man who discovered the anomaly in 1977, believes the most likely explanation is a signal from an extraterrestrial civilization. https://en.wikipedia.org/wiki/Wow!_signal "In a 1997 paper, Ehman resists "drawing vast conclusions from half-vast data"—acknowledging the possibility that the source may have been military or otherwise a product of Earth-bound humans. However, Ehman thinks that the most likely explanation for the signal is from an extraterrestrial civilization."