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This article is from the In-Depth Report Exploring the Red Planet

Rethinking the Dream of Human Spaceflight

Fifty years after the first human ventured into space, we need some creative thinking

I have suggested, for example, sending astronauts on a one-way mission. Even if we consider the cost of keeping the crew alive indefinitely on the planet’s surface, a one-way trip would cost a mere fraction of a two-way trip, and I am sure volunteers would line up. If we are going to break the cycle of disappointment, we are going to need all the creative thinking we can muster.

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