'Wow': Humans tweet response to 'aliens'

'Wow': Humans tweet response to 'aliens' - Technology & science - Space - Space.com - NBCNews.com: "Because the radio signal was 30 times more powerful than the average radiation from deep space, a volunteer astronomer named Jerry Ehman who was watching the telescope data scrawled "Wow!" on a computer printout, leading to the signal's moniker. No evidence ever arrived actually linking the transmission to an alien civilization, and no repeat message from the same direction has ever been detected, and the Wow! Signal remains a mystery."