ITS is conspicuously absent in this post but has been discussed by the same author in another post. http://caseyexaustralia.blogspot.com.au/2016/09/spacex-mars

ITS is conspicuously absent in this post but has been discussed by the same author in another post. http://caseyexaustralia.blogspot.com.au/2016/09/spacex-mars-plan-analysis.html http://caseyexaustralia.blogspot.com.au/2016/09/spacex-mars-...