Add Yahoo as a preferred source to see more of our stories on Google. Mere moments after SpaceX’s Starship system — the most powerful rocket ever built — was lost in a test flight Saturday, a somewhat ...

US intelligence agencies believe that China is developing a new generation of nuclear weapons and has conducted at least one covert explosive test in recent years as part of a broader push to ...

Scientists have developed a way to detect tiny amounts of hard-to-detect explosives more than eight feet away, reducing the need to swipe clothing, luggage or other materials. The method, published in ...