According to Gizmodo this is real, though I still want to call bullshit on it. This is a missile with multiple warheads that split off, but the scary thing is the video of it calmly floating through the air.
The Lockheed Martin’s Multiple Kill Vehicle will be the first anti-ballistic missile system designed to search and destroy multiple warheads and countermeasures using a single launcher. First, the MKV-L will fly to encounter the cloud of multiple warheads and decoys being deployed by the enemy missile. Then, instead of exploding, the MKV will maneuver through the threats launching several kill vehicles, each targeted at the different objects on the air, both real dangers and dummies set to deceive missile defenses.
Does this freak you out too? Link.