Earth needed ~ 2 billion years for life to start. Frequent solar winds - especially in the first few billion turbulent years of the universe - basically sterilize planets and the whole 2-billion-year counter gets reset to 0.
Planets that exist without a solar system, but do retain sufficient heat, might have been out of solar winds harm ?
Planets that exist without a solar system, but do retain sufficient heat, might have been out of solar winds harm ?