Add Yahoo as a preferred source to see more of our stories on Google. The U.S. Air Force general who oversees America's intercontinental ballistic missile (ICBM) force sees a long future ahead for the ...
The US Army has begun fielding its new Sentinel A4 radar, a next-generation sensor that is already arriving in units while a ...
Overseen by the 717th Test Squadron and the Arnold Engineering Development Test Complex, the ground-based fire of the Sentinel’s second stage rocket motor was “conducted in a vacuum chamber to ...
The projected price of an Air Force program to build a next-generation nuclear missile – dubbed Sentinel – had risen 81%, from $77.7 billion to nearly $141 billion. (That’s the equivalent of Americans ...