The powerful Vulcan faces its biggest test yet as it prepares to launch on its second national security mission from Florida.

Add Yahoo as a preferred source to see more of our stories on Google. The powerful Vulcan rocket faces its biggest test yet as it prepares to launch on its second national security spaceflight from ...

The next launch attempt of a Delta IV Heavy rocket from Vandenberg Air Force Base remains up in the air pending results of additional testing, United Launch Alliance representatives said Saturday. On ...

With SpaceX champing at the bit to begin construction of a new Starship launch site at Cape Canaveral Space Force Station, demolition began Thursday to remove structures used by the previous tenant, ...

United Launch Alliance's Vulcan rocket is preparing for its fourth launch and second national security mission. The upcoming mission will carry the rocket's heaviest payload to date on its ...

A spacecraft dubbed "the Vulcan" is about to embark on its first national security mission and just its third flight ever from Florida. But plenty more launches should be in the spacecrafts' future – ...