US Space Command confirms study by Avi Loeb and Amir Siraj, who picked up on 2014 space rock that hit near Papua New Guinea but were initially dismissed

6th branch of US military is 1st new service since Air Force in 1947; 'Core space operators' at Qatar base will take on operations like running satellites, tracking enemy maneuvers

Apparent launch of projectile from orbiter viewed with deep suspicion by Pentagon and analysts, though Moscow claims vehicle was simply maneuvering to inspect satellite

At event for unveiling of Space Force flag, president claims the new weapon can travel '17 times faster than what we have right now'