If alien life does exist, scientists aren't sure what it would look like, but one cosmologists says such extraterrestrial creatures will be big -- on the order of 660 lbs. (300 kilograms), says a cosmologist who bases the estimate on statistics.
If alien life does exist, scientists aren't sure what it would look like, but one cosmologists says such extraterrestrial creatures will be big -- on the order of 660 lbs. (300 kilograms), says a cosmologist who bases the estimate on statistics.
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