Elon Musk isn’t the only CEO who has his eyes on reusable, commercial space vehicles. Recently, Amazon’s CEO Jeff Bezos floated a white paper to NASA management that outlines a plan to send as much as 10,000 pounds of cargo, in a lunar lander, to the moon in a single trip. It’s called Blue Origin. The target would be near the Moon’s south pole, the Shackleton Crater, where there are sections of permanent sunlight that may also harbor ice, key to a permanent human base. It all sounds very Robert Heinlein-esque, these billionaires setting out on new commercial missions. Very cool.