ULA hoped to launch its last Delta mission last month, but there was an issue with the gaseous nitrogen pipeline which provides pneumatic pressure to the launch vehicle. There was no such issue today, ...

I've got a guilty secret that I can now share—I loved the Delta IV Heavy rocket. No, I didn't love the price, which was preposterous, at times approaching $400 million. This precluded Delta from ...

The final flight of United Launch Alliance’s Delta IV Heavy rocket took off Tuesday from Cape Canaveral, Florida, with a classified spy satellite for the National Reconnaissance Office. The Delta IV ...

The storied career of the Delta family of rockets had to wait a little longer than planned to turn the page on its final chapter, but the last of its kind lifted off on the Space Coast on April 9. A ...

After waiting almost two weeks, the Delta IV Heavy launched on its farewell flight Tuesday, giving spectators one final show. The wait, for many, was worth it. As the rocket rose into the sky, cheers, ...

United Launch Alliance’s Delta IV Heavy rocket launched for the final time on Tuesday, bringing an end to six decades of service by the Delta family of rockets. The Delta IV Heavy, which first flew in ...

The mission signals the switch to a more modern rocket, the CEO of the Colorado-based company says. Space Force picks Centennial-based company for slate of launches ...

We have several missions coming up next week, but what is really interesting in this installment of This Week in Rocket Launches is the recap section, where you’ll find a video of the last ever United ...

Stunning 'rocket cam' footage captures the final Delta IV Heavy launch, closing out the program after 64 years of delivering large payloads into space. When you purchase through links on our site, we ...

The United Launch Alliance is planning for the Vulcan to become its workhorse rocket. It faces its biggest test yet in its next launch.

ULA's Vulcan is due to send up on Aug. 12 a pair of U.S. Space Force national security satellites on one of the company's most ambitious-ever launches. The Vulcan rocket, which has flown twice before, ...