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 ...

Vulcan Centaur is supposed to launch more than a dozen missions for the U.S. Space Force this year, but those flights could now face months-long delays. Reading time 3 minutes A United Launch Alliance ...

United Launch Alliance is running short on usable hardware this year having to rely on its dwindling supply of Atlas V rockets while it continues an investigation into what went wrong on the last ...

The push to get United Launch Alliance’s new rocket off the ground will have to wait for more fixes and testing, but it’s still aiming to launch before the end of the year. ULA President and CEO Tory ...

WASHINGTON — NASA has selected United Launch Alliance’s Centaur 5 as the upper stage for its Space Launch System rocket for two crewed missions planned for 2028. Centaur 5 was developed as the upper ...

The powerful Vulcan rocket faces its biggest test yet as it prepares to launch on its second national security spaceflight from Florida. This time around, a rocket meant to become the United Launch ...