No, it's not an alien, but we may have just been visited by something that originated beyond our solar system. For the first time, astronomers have observed something passing through our solar system that has likely travelled light years to get here. "But once we had confirming images from a colleague, we were pretty confident that this was coming from outside the solar system." Travelling at 44 kilometres per second, it is headed away from the Earth and sun on its way out of the solar system. Although it's highly unlikely, a very large, extremely distant planet could have altered the orbit of something far out in our solar system.

Source: CBC News October 28, 2017 09:00 UTC