Next month.

Hypersonic Weapons

* Between 2011 and 2015, Defense Department spending on hypersonic technologies increased by 98 percent, but over four years have passed since the Air Force last performed a hypersonic test mission. As near-peer adversaries continue to develop their technologies at a rapid rate, we explore how the United States is working to remain ahead of the hypersonic curve.

SOF

* U.S. Special Operations Command is looking for new drones and other intelligence, surveillance and reconnaissance platforms as it continues the fight against terrorist groups such as the Islamic State, while preparing to face more advanced adversaries. Industry is offering ISR solutions to help special operators perform their missions.

Missile Defense

* As the ballistic missile threat from adversaries such as North Korea grows, some observers are arguing that the United States should base interceptors in space. Experts say deploying such a system would be technically feasible, but questions remain about its cost-effectiveness and political viability.

Electromagnetic Railgun

* The Navy is investing in a myriad of emerging technologies, including its...