Key points from article :
Elon Musk says a city of a million people could be established on Mars within decades.
Humans would face a “doomsday event” unless we become a “truly multi-planetary species”.
Envisaged creating a Mars Colonial Fleet of 1,000 craft.
If we could warm Mars up, we would once again have a thick atmosphere and liquid oceans.
"It has got to be really fun and exciting... you can do zero-gravity games"
COMMENT: unless everyone is dedicated we'll need a new drug to address rapid muscle loss in low gravity
The study was published in the New Space journal.
