This mystery object may be our first visitor from another solar system

NASA doesn't know where A/2017 U1 came from, but it's not behaving like the local space rocks.
Read more: http://www.cnn.com/2017/10/27/us/mystery-object-solar-system-trnd/index.html?sr=twCNN102717mystery-object-solar-system-trnd1144AMStory?source=Snapzu