Russia and China's 'unfriendly' space behavior is 'concerning' and could threaten US satellites, defense analysts say

• Russia and China are investigating ways to disable US satellites, raising defense concerns.
• China is testing satellite grappling technology that can move objects in space without debris.
• Russia is believed to have tested projectile weapons for use in orbit.

Russia and China appear to be actively looking into ways to watch and potentially incapacitate US satellites in space, and defense analysts are concerned.