Blue Origin is another company that talks a good game, but they've yet to put anything in orbit. If NASA is casting about for a second supplier, there were oth

Blue Origin is another company that talks a good game, but they've yet to put anything in orbit. If NASA is casting about for a second supplier, there were other rejected bidders on the current human space transport contracts (e.g., Sierra Space's Dream Chaser, still under development in a cargo variant) which seem less risky.