To date, most known extrasolar planets are gas giants like Jupiter or Neptune. Lacking even a solid surface, they are worlds very unlike our own planet. As the search for other Earths continue, a true Earth twin must satisfy five characteristics.
Friday, 7 February 2014
How To Find Our Planet's Twin
To date, most known extrasolar planets are gas giants like Jupiter or Neptune. Lacking even a solid surface, they are worlds very unlike our own planet. As the search for other Earths continue, a true Earth twin must satisfy five characteristics.
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