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"Life Form Found" on Saturn’s Titan ? ?Scientists say they have discovered hints of alien life on th...

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might be    may have been    should have been    could be  
They have found methane-based life on Saturn.  They have found a new moon orbiting Saturn.  They have found methane-based life on Titan.  They have found earthlike life on a Saturn’s moon.  
Scientists have different arguments over whether there is life on Titan.  Scientists all agree that a non-biological chemical reaction is a possible explanation.  Scientists all suggest that a biological explanation is reasonable.  Scientists all agree that there is life on Titan.  
Gas-based life.  Methane-based life.  Water-based life.  Liquid-water-based microorganisms.  
Water-based life on it.  Methane—based life on its biggest moon.  A new moon moving around it.  Earthlike life on its biggest moon.  
water-based life.  oxygen-based life.  methane-based life.  liquid -based microorganisms.  
finding   found   having found   to have found  
Scientists are trying to conform there is life on Titan.  Scientists agree that a chemical reaction is a convincing explanation.  Scientists share the opinion that a biological explanation is reasonable.  Scientists are arguing over whether there is life on Titan.  
in the hope of  in the form of  in honour of  in terms of  
It is as large as the earth.  There is acetylene on its surface.  Water on it as a life supporting medium.  Hydrogen consumption is reported to be on it.  
Water on Titan exists in the form of ice.  There are life clues there.  Rivers and lakes there contain life forms.  There is acetylene ther  
which    that    it    those  
A different Life Form, a Possibility.  Earthlike Living Beings Found on Titan.  Finding of One More Moon of Saturn.  Titan, a New Satellite Found.  

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