Sending large numbers of people to explore and settle Mars in the decades ahead isn't inevitable, but it is entirely possible. The biggest challenge isn't the engineering and spacecraft, however difficult they may be. Instead, it's making sure that a sustained Mars campaign proceeds as a national priority, and that will happen only if the American people are behind it. We have the opportunity now to make this happen. We might not be so fortunate in the future. (Elon Musk)

Sending large numbers of people to explore and settle Mars in the decades ahead isn't inevitable, but it is entirely possible. The biggest challenge isn't the engineering and spacecraft, however difficult they may be. Instead, it's making sure that a sustained Mars campaign proceeds as a national priority, and that will happen only if the American people are behind it. We have the opportunity now to make this happen. We might not be so fortunate in the future.

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