The mysterious giant planet broke orbits of Jupiter, Saturn, Uranium and the Neptune: Planeta-H?

Modern orbits of planets of Solar system seem stable, but it only because planets were established on them for billions years. The early Solar system considerably differed from modern, and within nearly 20 years scientists considered that they well understand how it became such. But quite recently data began to point out some defects of this understanding - especially in how huge planets in external part of Solar system appeared where they are today. Now the international group of astrophysicists considers that they have the best understanding of this process, and they...