Three Chinese astronauts whose return to Earth was delayed by space debris hitting their vessel last week landed in China on ...

On Nov. 15, 1864, late in the U.S. Civil War, Union forces led by Maj. Gen. William Tecumseh (teh-KUM’-seh) Sherman began ...

The North American XB-70 Valkyrie was a “technical marvel” of the 1950s—a Mach 3, 70,000-foot nuclear bomber designed to ...