Giving freight rail tracks a boost

The big chunks of rock—crushed limestone or dolomite that engineers call ballast—that keep railroad tracks in place look like a solid footing even as freight cars rumble overhead.

Better data tools for a bigger geothermal future

To fully realize the potential of harnessing energy from the heat within the earth will require a far more detailed understanding of what's going on down there than scientists currently have. And beyond naturally occurring ...

Mining on the moon could actually happen, someday: researcher

While lunar mining might some day be economically feasible for countries and companies, a Missouri University of Science and Technology researcher believes strongly that mining in space is essential to the very survival of ...

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