Designing a “Keep Out” Sign to Last 10,000 Years

Designing a “Keep Out” Sign to Last 10,000 Years

The proposed warning reads, “This is not a place of honor… What is here is dangerous and repulsive to us… The danger is still present, in your time, as it was in ours.”

In New Mexico, the U.S. government is burying nuclear waste that will remain deadly for millennia. To protect the distant future, a multidisciplinary team of scientists, linguists, and even sci-fi writers is designing a “Keep Out” sign that will last 10,000 years. They must overcome immense challenges in material science and linguistics to create a warning that can survive and be understood by a completely unknown civilization.

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