Five Obstacles to Landing People on Mars

Five Obstacles to Landing People on Mars

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Getting a six-wheeled car-size rover safely onto the surface of the red planet? Daunting, sure. But NASA did it with Curiosity. Sending humans on a mission to Mars? That requires overcoming even more outlandish obstacles. Here’s a look at five of the top challenges to safely getting astronauts to Mars, as well as potential solutions.