Which astronomical discovery was nicknamed 'Little Green Man'?
In 1967 Jocelyn Bell Burnell and Antony Hewish first observed pulses separated by 1.33 seconds, originated from the same location on the sky. It was not until a second pulsating source was discovered in a different part of the sky that the "LGM hypothesis" was entirely abandoned.
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+7 Very interesting! globalquiz.org