Elon Musk has never been one for small dreams. But his vision for humanity’s future is as cosmic as it gets: colonizing Mars to ensure the survival of civilization itself. The billionaire entrepreneur ...

Elon Musk reacts to a resurfaced video with a four-word tweet, reaffirming his long-term vision for travel beyond the confines of our solar system. Learn more about Musk’s vision of finding alien life ...