<iframe title = "Elon Musk Reveals His Plan for Colonizing Mars" width="700" height="400" src="https://www.youtube.com/embed/W9olSzNOh8s?autoplay=1&modestbranding=1" frameborder="0" allowfullscreen></iframe> <br>Elon Musk takes the stage of the 67th International Astronautical Congress in Guadalajara, Mexico on Sept. 27, it won't be to rehash terrestrial concerns like a ...