NASA: National Aeronautics and Space Administration

  1. Special Note


    Ask an Astrobiologist has received more than 2500 questions about Nibiru and 2012, with more than 200 answers posted. Please read a summary of the answers that have already been posted, view a video on these topics, use the search feature and read the FAQ’s before submitting questions on these topics.

  1. Question

    How long does it take to create intelligent life out of microbial life in the fastest possible way where the planets climate is stable?

    We can't answer that question, since we have only one example of life to study. On Earth the time span from the first multicelled life to intelligence was a bit less than a billion years, but that really doesn't help answer your question about the "fastest possible way".
    David Morrison
    NAI Senior Scientist

    July 15, 2008