The anatomy of a centaur (half man, half horse) raises a lot of questions. For instance, which organs go where? And what’s the purpose of having two torsos? If scientists could only get their hands on ...

Assuring that spacecraft are safe enough for human occupancy – a process called "man-rating" – "is as much art as it is science," Ross said. "The Johnson and Marshall people know how to do that ...

While a static-fire test of Vulcan's booster June 7 was a success, the rocket's first launch will be delayed to make "minor reinforcements" to the Centaur upper stage. Credit: ULA WASHINGTON — The ...

The three-hour launch window opens at 6 a.m. EDT (1000 GMT). When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. United Launch Alliance (ULA) is set ...