PayPal is used by almost 130 million people, generates a lot of revenue, and made its backers very, very wealthy. It's a model company. But, that's apparently not enough, and PayPal just announced it will create a way for astronauts to buy things, in space. OK.
Forgot to bring your wallet to the Red Planet Gift Shop? Not to worry. If a recent rumor is true, you may be able to pay for that Martian trinket by using PayPal.