NASA played an integral role in the rescue of the 33 miners in Chile.

NASA had input on the rescue capsule that brought the men home.

“It was 75% engineering and 25% a miracle,” said topographer Macarena Valdes in an article in The Wall Street Journal.

Rescuers supplied the trapped men with provisions through a five-inch-diameter shaft with essentials such as bottled water, camping cots and chest straps to monitor their health.

According to WSJ, “The lifeline gave rise to a high-technology life underground. The men wore clothing made with a bacteria-killing copper fiber, watched movies on a projector built into a cellphone, and communicated with rescuers over an ultra-flexible fiber-optic cable that maintains transmission capacity while twisting through rocky crags deep below ground.”

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