AURORA, Colorado— The Pentagon won’t have new cost estimates for the way-over-budget Sentinel intercontinental ballistic ...

The Sentinel nuclear missile was originally scheduled for testing in 2026, but faced significant delays after its skyrocketing budget triggered a rare Nunn-McCurdy breach.

Switching from the Minuteman III to the Sentinel system, led by Northrop Grumman, involves the replacement of more than 600 facilities across five states.

The government watchdog’s timeline runs counter to a U.S. Air Force news release that said the Sentinel’s first flight could ...

We certainly have not lowered the bar, and we certainly have not taken on any risk by doing this,” Air Force Gen. Dale White told Breaking Defense.

We now know much more about the USAF's sprawling plans for new Sentinel ICBM silos with features not found on Minuteman III.

The troubled Sentinel intercontinental ballistic missile program will hit a key milestone by year’s end, with hopes to deliver the initial ICBM by the early 2030s, Pentagon and Air Force officials ...

Add Yahoo as a preferred source to see more of our stories on Google. Attendees tour the LGM-35A Sentinel munitions storage igloos at Vandenberg Space Force Base, California, Dec. 1, 2025. (Staff Sgt.