Without the ability to freely evacuate casualties or transport supplies via air, blood transfusions right on the battlefield ...

Thursday marks the 100th anniversary of the U.S. entry into World War I, and some of the innovations that were developed or came into wide use during the conflict are still with us today.

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Deep-sea vehicles revealed detailed images of the USS F-1 submarine wreck. The expedition also honored lost sailors and trained future scientists. A recent deep-sea training and engineering mission ...