Recent content by andygee

OP speaks The information is not requested as part of an astronomy project. Specifically, I'm looking for the earliest likely time for a planet to exist with the possibility of evoloving some form of life; I'm making the leap that that calls for a "rocky" planet. It's one of a list of dates...

I'd be happy to take a consensus guess of cosmologists who have considered the question. I'm measuring time from the big bang. Thanks -- --andygee

I'm looking for a more or less definitive answer for the earliest time when rocky planets could form. I saw one thread in this forum that addressed this, but there was no resolution. My guess is two to three billion years from the start to allow for several generations of supernovae to put out...