For the fourth time in a little more than a year, the US Space Force needs to send up a new satellite to replenish the ...

The latest test of a next-generation rocket booster for NASA’s Artemis moon program ended with a violent structural failure, abruptly cutting short what was supposed to be a carefully choreographed ...

Add Yahoo as a preferred source to see more of our stories on Google. United Launch Alliance suffered yet another fiery burn-through on one of its solid rocket boosters during a national security ...

Add Yahoo as a preferred source to see more of our stories on Google. United Launch Alliance was hoping to ramp up its new Vulcan rocket launches this year, but won’t be launching any national ...

A ULA Vulcan rocket launched a Space Force mission, but an unexpected light show from its boosters sparked questions. Here's what we know.