Artist's rendition of 55 Cancri E
 Mail Online:  Huge "waterworld" has boiling oceans hundreds of times deeper than Earth's.
A planet where a year lasts just 18 hours is a waterworld with a radius around twice the size of earth, a team of astronomers has discovered.  55 Cancri E is the innermost in orbit around a sun-like star known as 55 Cancri A that is around 40 light years from Earth.  Now a team from the University of Liege in Belgium have revealed further details about the planet after co...
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