"I don't know if you saw, but I gave a little speech on Tuesday," Hegseth told the gathered locker-room on Saturday.

David "Mac" MacDonald used to serve on U.S. nuclear subs. Now he's working on a precise replica of a ship that set sail almost 1,500 years ago.

What if I told you the U.S. built dozens of concrete ships yes, ships made of concrete and many of them are still floating today? In this video, I kayak out to nine concrete ships stranded off the ...

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Read all of Slate’s stories about the 25 Greatest Picture Books of the Past 25 Years. On Oct. 8, 2010, the New York Times ran a story on its front page: “Picture Books No Longer a Staple for Children.

Ernest Shackleton's ship, the Endurance, infamously sank in Antarctica — and now a new study finds that it had known flaws.