A backup version of Skylab was displayed when the Smithsonian’s National Air and Space Museum opened 50 years ago. After renovation of the building, the artifact is once more on view in a new gallery ...

I can’t think of a more fitting celebration of this Fourth of July than a reading of Walter Isaacson’s thin volume “The Greatest Sentence Ever Written.” Isaacson is an influential public scholar and ...

Thomas Jefferson was tasked with drafting a wartime document declaring independence. How did it become one of history’s most enduring symbols?

A prototype cell partly capable of replicating itself has been created using 36 existing bacterial genes, but it's not really a living organism – yet ...