KEY POINTS
  • Elon Musk held a surprise question and answer session at the South by Southwest Festival in Austin, Texas on Sunday.
  • The billionaire said SpaceX is on track to send his Mars-intended rocket on short trips by 2019, but joked about potentially missing the timeline.

Tesla and SpaceX founder Elon Musk told an audience at South by Southwest that his timeline for sending a space vehicle to Mars could mark its first milestone early next year.

The privately-funded venture, announced in September 2017, aims to send a cargo mission to the Red Planet by 2022. SpaceX's ultimate objective is to plant the seeds to put a human colony on Mars.