Jupiter ejected its icy brother giant from solar system, its moon implies

There was a fifth giant planet in the solar system, but it was ejected after a close encounter with Jupiter, a computer model made by Canadian astronomers suggests.

 They studied the orbits of a Jovian moon for proof.
The dominant scientific view of how our star system came to be as it is now is called the Nice model after the French city, where it was first developed. It is pretty good at explaining most, but not all things. For example, Jupiter is too far from the Sun to fit the model.
More...Jupiter ejected its icy brother giant from solar system, its moon implies

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