When Two Worlds Collided

It's just another year in Rivendell, when suddenly a large silver metal…thing…crashes into the ground outside the palace. Who are these strange people? Where did they come from? And will they be able to survive here in Middle Earth or will they have to return to their far away home among the stars? Hobbit/Star Trek fanfiction
Note: This story is based off of the movie version of the Hobbit, not the book, so yes, there is Tauriel. There are probably some other small details that have been changed as well.