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I don't think so. Engines have been used before. Rockets have been landed on their tails by many organizations. And I don't think too many people doubt Space

by gozur88 11y ago

I don't think so. Engines have been used before. Rockets have been landed on their tails by many organizations. And I don't think too many people doubt SpaceX can go to Mars. The questions are over the date.

robryan 11y ago
Most spacex dates slip. Sure they are wildly optimistic but the end result is still much faster than anyone else.
- gozur88 11y ago
  That's the point, though. They do miss most of their deadlines, and if they miss the 2018 date they're going to have to wait a few years for a comparable launch window.