nasa, nasa secrets, nasa stories, nasa theories, nasa aliens, alien sightings, alien encounters, space, space discoveries, space mysteries, Oumuamua, Oumuamua explained, what is Oumuamua, Oumuamua mystery, space news, space update Here on the little space rock, we call Earth, humans often ...

It's the oldest question on Earth. Where did we come from? Some people may thank a creator from above, but what if the hand that created humanity wasn't divine? What if aliens brought life to Earth? How could a meteor carry life to our planet? Could microbes survive the cold vacuum of space? And ...