Update, 3:25 p.m.: The Delta IV Heavy rocket launched from Vandenberg Space Force Base. Update, 3:20 p.m.: The mission director gave the final go for launch after all parties had check in with “go” ...

Californians may soon see the powerful ULA Vulcan rocket blazing across the sky brighter and more widely visible than what is ...

The launch of the Delta IV heavy rocket was scrubbed Thursday at Cape Canaveral Air Force Station. The launch had been pushed back several times due to the weather. The rocket was set to carry a ...

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

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 scheduled launch of a rocket carrying a reconnaissance satellite into orbit from Vandenberg Air Force Base in Santa Barbara County that was originally scheduled for Friday and reset for Saturday ...

If you were within 50 miles of the Vandenberg Air Force Base on the central California coast last week, you may have heard engines roaring. Why? On August 28, at 11:03 a.m. PDT, the U.S. government ...

CAPE CANAVERAL, Fla. — A U.S. spy satellite thundered toward orbit Saturday afternoon atop the most powerful rocket flying today, a 23-story Delta IV Heavy that blasted off from Cape Canaveral Air ...

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 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 ...