The private space company run by Amazon CEO Jeff Bezos has completed its fourth successful unmanned rocket launch and safe landing in West Texas using the same vehicle, according to AP. Officials with Blue Origin say the latest launch of New Shepard happened Sunday morning near Van Horn. The rocket landed upright, with Bezos (BAY'-zohs) tweeting: "Successful mission." New Shepard consists of a capsule designed to take people into space for suborbital flights, along with a booster. The Washington state-based company also launched New Shepard on Nov. 23, Jan. 22 and April 2 from the same site.