What if war moved beyond Earth? Kinetic bombardment - dropping tungsten rods from space - could become the next frontier of military power. Here’s how it works and why it’s feared.

One end of the tungsten rod is tapered by dipping it into molten potassium nitrate, which dissolves the rod enough for it to fit into a die. Up to 50 passes through smaller and smaller dies ...

Caption Pictured is all that remains of a 1-mm tapered tungsten rod held by a graphite holder after being bombarded by 5 kilojoules of 2.5 million volt electrons in only 50 nanoseconds. The rapid ...