SpaceX founder Elon Musk on Tuesday unveiled an insanely ambitious plan to move a million humans to a new city on Mars within a century or less. Is the guy nuts or just the visionary we need to become a multi-planetary species?
Discuss Musk's vision for moving us to Mars live on the CraveCast at 3 p.m. PT Tuesday.
Future colonists Kelsey Adams, Stephen Beacham, Bonnie Burton, Jeff Sparkman and Eric Mack will be on hand to review a presentation that will go down either as the start of a new era for humanity in space, or a classic example of hubris. Join the discussion to help us decide which is more likely.