Planet just 25 light years away destroyed by unidentified but powerful forces. Move along please. Nothing to see here.
A massive exoplanet some 25 light years away may be nothing of the sort, astroboffins now believe – which isn't surprising seeing as it just vanished. In 2008, after four years of observations using the Hubble Space Telescope, scientists announced the discovery of Fomalhaut b. Yet by 2014, the object had all but disappeared. …
> a comet
A comet "about 3 times the mass of Jupiter", would be a sight to behold indeed! Is such an object even possible? I guess gravity would transform an ice cube that size into a (quite stable) gas planet, which, due to the extreme gravity, would take an eternity to evaporate.
A less dense cloud of ice then? We're back to the cosmic prang theory then, as such a thing is unstable and wouldn't last long.
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