In the last few years alone, there's been incredible progress in our dream to explore deep space. Thanks to the efforts of individuals like Elon Musk and organizations like NASA, interest in space talk has spiked again. And so has competition within the industry. Now, some believe that the key to fully realizing our ambitions may lie on the moon.

You can always dream big. But when you're a billionaire, you get to put plans into action immediately. That's what Jeff Bezos has been doing for almost 2 decades with Blue Origin. Recently, he unveiled his plans for the future of humankind, and they involve living space colonies, each 1-million plus strong.