The powerful Vulcan rocket has launched on its second-ever national security spaceflight in what will be the biggest test yet for an up-and-coming spacecraft. Launching atop a staggering 3 million ...

For the first time in months, Firefly Aerospace's Alpha rocket launched in California. Here's a recap of the mission, visible along the West Coast.

Firefly Aerospace has postponed its Alpha rocket launch from California multiple times. Initial delays were due to weather, while recent postponements were caused by technical issues. The launch will ...

Add Yahoo as a preferred source to see more of our stories on Google. What does 3 million pounds of liftoff thrust look like? A large chunk of Florida residents may see it when United Launch ...