Why aliens on 'super-Earth' planets may not be able to leave
New research suggests that if there are aliens out there living on “Super-Earth" planets, they may be stuck there.
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Published By: USA Today - Monday, 23 April, 2018
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New research suggests that if there are aliens out there living on “Super-Earth" planets, they may be stuck there.
       ...
Published By: USA Today - Monday, 23 April, 2018