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Space X's Elon Musk offers glimpse of plans for 'self-sustaining city on Mars'

Space X's Elon Musk offers glimpse of plans for 'self-sustaining city on Mars'

Elon Musk's Falcon 9 rocket is grounded, after blowing up for a second time. The maiden flight of its more powerful Falcon Heavy has been delayed again and again.

But Musk, never one to shy away from grand pronouncements, introduced SpaceX's conceptual plans here Tuesday for a rocket and spacecraft designed to start a "self-sustaining city on Mars" that he said could be achieved within 40 to 100 years.

In an hour-long speech titled "Making Humans a Multiplanetary Species" at the International Astronautical Congress here Tuesday he said his goal was to "make Mars seem possible. To make it seem like it's something we can do in our lifetimes. That you can...

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