File
Estimating the Occurrence of Life Outside Earth
Completion requirements
This exercise involves using two mathematical models to estimate the possibility of life outside Earth. One model was developed by Frank Drake in 1961 and his estimates for intelligent life form occurrence. Sarah Saeger has modified the equation to consider the presence of any life forms on exoplanets. Try the two methods and see where the numbers lead you!
Click Estimating Life Outside Earth.pdf link to view the file.