Blue Origin plans to perform a “couple dozen” test flights of its New Shepard rocket “hopefully” within the next two years before putting humans on board, according to a company official.Blue Origin Director of Strategy and Business Development Brett Alexander said Tuesday the company has flown its capsule four times while flying its launch vehicle for three ascents and two landings. He said Blue Origin plans to offer a price for its New Shepard suborbital flights once it gets closer…