I think you're refering to the Grand tack hypothesis[0], but Wikipedia is scarce on details as to how that scenario could've affected Mars orbit. I was trying

I think you're refering to the Grand tack hypothesis[0], but Wikipedia is scarce on details as to how that scenario could've affected Mars orbit. I was trying to see if this had a timeline, because the NASA cites lack of CO2 as far as -3.5GY, but there isn't enough detail in Wikipedia and my 5 minutes slack time is over :( [0] https://en.wikipedia.org/wiki/Grand_tack_hypothesis https://en.wikipedia.org/wiki/Grand_tack_hypothesis