President Donald Trump said Monday he would sign an executive order to start building an "Iron Dome" air defense system for the United States, like the one that Israel has used to intercept ...

For instance, operating a large-scale 3D printer outdoors made it nearly impossible to ensure consistent output while factors like temperature, humidity, and wind varied significantly.

Trump, who vowed during his campaign to "drill, baby, drill," will also sign an executive order focused on Alaska, the official said, adding that the state was critical to US national security ...