With a number of new plans emerging to take humans to the moon and Mars, the question of affordable transportation remains. Our guest today, Chris Lewicki—CEO of Planetary Resources, has a solution. The asteroid-mining company ​plans to drastically reduce the cost of deep space missions by ​refueling launch vehicles ​in space ​with ​water extracted from asteroids.​ ​Their technology enables rockets bound for Mars, and other destinations, ​to ​carry five times more cargo than what’s possible today​, without simply building larger vehicles. In this episode we're discussing asteroid mining, how it works, the market opportunity, and who's going to pay for this water.