By Steve Gorman

(Reuters] – Blue Origin was scheduled to launch its fourth commercial flight on Tuesday, bringing short, suborbital pleasurers to celebrities and thrill-seekers.

Blue Origin’s New Shepard Spacecraft was scheduled to launch at 8:30 AM CDT (1330 GMT). Six citizen astronauts were seated in the crew cabin on top of the fully-autonomous launch vehicle. The spacecraft is nearly six stories high and can be seen from Van Horn, Texas.

Blue Origin’s original three commercial flights had a passenger list that included William Shatner from Star Trek, Michael Strahan (morning TV host), and Bezos. However, the current group of passengers is not as famous.

Pete Davidson was the most recently confirmed non-paying promo guest. The launch date of Saturday Night Live’s March 23rd event was postponed six days to make room for more preflight testing.

Days later, the company revealed that Davidson, the boyfriend of Kim Kardashian on reality TV, was replaced on its latest “crew manifest” by Gary Lai (Veteran Blue Origin designer, architect for the New Shepard reusable Launch System).

Lai will fly for no cost. Lai joins five other paying customers, including Marty Allen, an angel investor, Marc Hagle, Sharon Hagle, and Jim Kitchen, an entrepreneur, University of North Carolina professor, and George Nield who founded Commercial Space Technologies.

Kitchen’s trip to the frontier represents a lifetime of travel, which has seen him visit all 193 U.N. recognized countries according to Blue Origin biographical material.

From liftoff to landing, Tuesday’s flight is scheduled to be just under 10 minutes long. After a short time of being weightless at the top of their suborbital journey, 350,000 feet (376,680 meters) up, the capsule will return to Earth via a parachute landing.

Blue Origin’s inaugural crewed space flight took Bezos along, the billionaire founder of Amazon.com (NASDAQ:).

His brother Mark Bezos was also there, a trailblazing female aviator Wally Funk, and a Dutch 18-year old high school graduate.

Shatner became the oldest human to have flown to space at 90 years old. Strahan was a co-host of “Good Morning America”, and he is also the ex-NFL star. Strahan was also the oldest daughter of Alan Shepard who pioneered spaceflight.