Russia's Sierra I-Class Submarine has a very unique titanium hull. That is an exotic feature the U.S. Navy can't match at the present, although for good reasons.
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What’s your favorite science fiction movie? Dr. Neil deGrasse Tyson: I have three. Contact, Deep Impact and just as a sentimental favorite, 2001: A Space Odyssey. Just how audacious that vision was for the future, is a lesson for us all, as a reminder on how we’re no longer dreaming about the future. But definitely Contact or Deep Impact,