What we learned about Elon Musk's Mars plan in his Reddit AMA

 Elon Musk, founder and CEO of SpaceX, hosted a Reddit “Ask Me Anything” this afternoon. He noted that the AMA should focus on SpaceX’s plans for Mars, which Musk revealed during the International Astronautical Congress last month. This will be under /r/spacex, not the general AMA. Meant to be supplemental to the IAC talk. — Elon Musk (@elonmusk) October 23, 2016…