new model for Solar System history

[notFritzArgelander]

Do we really need a Late Heavy Bombardment?

https://phys.org/news/2020-03-solar-cur ... ation.html

[helicon]

Gravitational interaction between the giant planets and the planetesimal disk produced disturbances in the gas disk that spread in the form of waves. The waves produced compact and synchronous planetary systems. When the gas ran out, interaction between the planets and planetesimal disk disrupted the synchronicity and gave rise to the chaotic phase. Taking all this into account, we discovered that the conditions simply didn't exist for the distance between Neptune's orbit and the inner boundary of the planetesimal disk to become large enough to sustain the late instability hypothesis.

100 million years rather than 700 million is a pretty significant difference. Kudos to the researchers for this new finding.