If anything, cosmic rays would (stochastically) seed clouds. Constant cloudiness would suggest that Earth was under bombardment at that time. (1) https://www.s

If anything, cosmic rays would (stochastically) seed clouds. Constant cloudiness would suggest that Earth was under bombardment at that time. (1) https://www.science.org/doi/10.1126/science.1076964 https://www.science.org/doi/10.1126/science.1076964