Scientists have NO IDEA how planets are formed.
It is simple.
A planet is an ancient dying star that's losing mass to its own radiation and solar wind and other younger hotter stars. This has been known to me since September, 2011. The General Theory of Stellar Metamorphosis covers this. Unfortunately it flies in the face of their "theories".
They forgot to throw Big Bang Creationism and "fusion" garbage in the trash like in the 1950's and 1960's, but for some strange reason that never happened. It is literally 2014 and they still teach that nonsense in school even though its completely false. What a mess!