Jeff Bezos, head of Amazon.com, is one the dotcom-billionaires who went on to become space entrepreneurs. He leads the notoriously secretive commercial spaceflight company, Blue Origin. A year ago, he announced that his team of sea experts successfully located relics of the the Apollo-era: the F-1 engines of the Saturn-V rockets at the bottom of the Atlantic ocean and that he was going to go after them. A year later, he fulfilled his promise.
A gas generator in front, a thrust chamber at the back.