"We have no evidence of any moon at all nor rings around this planet."
THAT'S no moon!
Astronomers have spotted a fifth planet orbiting 55 Cancri, making the (relatively) nearby star the centre of the most populous extrasolar system to date, New Scientist reports. 55 Cancri lies 41 light years from Earth, and is "slightly cooler and dimmer than our own Sun". It was already known to boast four planets, three …
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