The mystery of Oumuamua, the first interstellar object ever spotted in our solar system, has taken a new, unexpected twist and it's from someone you might not expect – NASA. ..." Because of the varying degrees of brightness emanating from Oumuamua's surface, NASA suggests it is "highly elongated and probably less than half a mile (2,600 feet, or 800 meters) in its longest dimension."The intrigue of what Oumuamua is or isn't has picked up a considerably over the past few weeks, especially as some researchers have theorized that it could be an object from an extraterrestrial civilization.A study from the Harvard...