United Launch Alliance (ULA) is gearing up for a critical test firing of its next-generation Vulcan Centaur rocket, and it could happen as soon as this week.
New Vulcan Centaur rocket may test-fire its engines on the launch pad for 1st time on May 25 : Read more
New Vulcan Centaur rocket may test-fire its engines on the launch pad for 1st time on May 25 : Read more