Blue Origin's NS-29 New Shepard rocket is expected to launch by late Jan. 31 after a delay if all goes well. Here's what to know

While New Shepard is best known as a space tourist vehicle, 19 of its 28 flights to date have been uncrewed. The reusable rocket-capsule combo last flew people on Nov. 22, a mission that sent "The Space Gal" Emily Calandrelli and five other folks to the final frontier.

Named after the first American to orbit Earth, the New Glenn rocket blasted off from Florida, soaring from the same pad used to launch NASA’s Mariner and Pioneer spacecraft a half-century ago.