SpaceX Live Updates: Inspiration4 Crew Gets Ready for Launch

Four amateur astronauts who have never been to space before are hours away from heading to orbit. Here’s what you need to know.,

LiveUpdated Sept. 15, 2021, 4:50 p.m. ETSept. 15, 2021, 4:50 p.m. ET

Four amateur astronauts who have never been to space before are hours away from heading to orbit. Here’s what you need to know.


From left, Chris Sembroski, Sian Proctor, Jared Isaacman and Hayley Arceneaux, the crew of the Inspiration4 mission, during a dress rehearsal for the launch.Credit…SpaceX, via Associated Press

When the next SpaceX Falcon 9 rocket lifts off from Kennedy Space Center on Wednesday, it’ll be a mission unlike any that has come before.

There will be four people inside the capsule on top of the rocket, just like the last two SpaceX missions that took NASA astronauts to the International Space Station. But this time, none of the four passengers works for NASA or any other space agency.

Key Updates:

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How are they flying to orbit?

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Wednesday’s flight schedule

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When is the launch and how can I watch it?

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Michael Roston

Editing Space Coverage

The weather forecast has improved, according to the U.S. Space Force, which determines whether it is safe to launch. It now projects a 10 percent probability of violating weather rules, rather than 20 percent from an earlier forecast.

Sept. 15, 2021, 4:08 p.m. ETSept. 15, 2021, 4:08 p.m. ET

Kenneth Chang

Reporting From Kennedy Space Center

The Inspiration4 crew is riding in Tesla cars to the launchpad. They’ll get into their spacesuits at a SpaceX support room there, not the NASA facility where NASA astronauts get ready. That’s part of the shift from a government mission to a private one.

Credit…Joe Raedle/Getty Images
Credit…Joe Raedle/Getty Images

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The four crew members of Inspiration4 will be inside a Crew Dragon capsule built by SpaceX. The capsule will launch on top of one of SpaceX’s Falcon 9 rockets.

It’s the exact same system that is used to take NASA astronauts to the International Space Station. Indeed, the capsule they are riding in, named Resilience, was used for a NASA mission that launched in November last year. It returned to Earth in May and was refurbished for the Inspiration4 mission.

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The Falcon 9 rocket and Crew Dragon capsule sit on the launch pad at Kennedy Space Center in Cape Canaveral, Fla.Credit…Craig Bailey/Florida Today, via Associated Press

The launch could occur as early as 8:02 p.m. But the action will begin hours before that.

If the schedule is similar to SpaceX’s earlier NASA astronaut flights, then about three and a half hours before the launch, the crew will begin donning their customized SpaceX spacesuits. Once technicians have confirmed the suits are properly fitted, the four astronauts will say goodbye to their families and be transported to the launchpad.

Approximately two and a half hours before the flight — around 5:30 p.m. Eastern time — the crew will board the Crew Dragon capsule. SpaceX technicians will then complete a number of procedures before sealing them inside the spacecraft, a process that could take about an hour.

About 45 minutes before the scheduled launch time, SpaceX will start loading propellent into the rocket and begin making final checks of the spacecraft’s systems and the weather to decide whether it is safe for the mission to launch.

Once the rocket launches, the capsule will begin a series of steps to be lifted to orbit, including separating from the rocket’s first and second stages. In the hour or so that follows, the spacecraft will fire its thrusters, setting it on the course it will follow until the astronauts return to Earth on Saturday.

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Mr. Isaacman, founder and chief executive of Shift4 Payments. Credit…Patrick T. Fallon/Agence France-Presse — Getty Images

He grew up in New Jersey and in ninth grade started a company offering help to befuddled computer users. One of his clients was a payment processing company, and its chief executive offered him a job. Mr. Isaacman took the job and dropped out of high school at age 16. He obtained a general educational development certificate, or G.E.D.

After half a year, Mr. Isaacman figured out a new way to handle payment processing, and in 1999 he founded his own company in his parents’ basement. That evolved into Shift4 Payments, which went public in June 2020.

Mr. Isaacman started flying as a hobby, learning to pilot more and more advanced aircraft including military fighter jets. In 2012, he started a second company called Draken International, which owns fighter jets and provides training for pilots in the United States military. He has since sold Draken but still flies fighter jets for fun.

Last year, Mr. Isaacman wanted to invest in SpaceX, which remains a privately held company, but missed the latest investment offering by the company. Mr. Isaacman tried to convince SpaceX officials of his enthusiasm by telling them he wanted to buy a trip to orbit someday. That led to conversations that resulted in Mr. Isaacman undertaking the Inspiration4 mission. He is serving as the mission’s commander.

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Credit…Joe Raedle/Getty Images

A five-hour launch window opens Wednesday at 8:02 p.m. Eastern time. The exact time will depend on the weather. Current forecasts give an 80 percent chance of favorable conditions. In an update posted to Twitter at about 1:20 p.m., SpaceX said the rocket’s systems were ready for flight.

If the flight can’t launch during that five-hour time frame, SpaceX could try again on Thursday beginning at 8:05 p.m. Eastern time.

The launch will be streamed live by SpaceX on its YouTube channel, and also by Netflix on its YouTube channel. Or you can watch it in the video player above.

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From left, Hayley Arceneaux, Chris Sembroski, Jared Isaacman and Sian Proctor, during a zero gravity flight to train for the Inspiration4 mission in July.Credit…John Kraus/Inspiration4, via Associated Press

Hayley Arceneaux, 29, is a physician assistant at St. Jude Children’s Hospital in Memphis. Almost two decades ago, Ms. Arceneaux, who grew up in the small town of St. Francisville, La., was a patient at St. Jude when bone cancer was diagnosed in her left leg, just above the knee. Ms. Arceneaux went through chemotherapy, an operation to install prosthetic leg bones and long sessions of physical therapy.

“When I grow up, I want to be a nurse at St. Jude,” she said in a video shown at the ceremony in 2003. “I want to be a mentor to patients. When they come in, I’ll say, ‘I had that when I was little, and I’m doing good.'”

Last year, Ms. Arceneaux was hired by St. Jude. She works with children with leukemia and lymphoma.

Ms. Arceneaux could become the youngest American ever to travel to orbit. She will also be the first person with a prosthetic body part to go to space. She will be the health officer for the mission.

Sian Proctor, 51, is a community college professor from Tempe, Ariz.

Dr. Proctor, who is African American and holds a doctorate in science education, had come close to becoming an astronaut the old-fashioned way. She said that in 2009, she was among 47 finalists whom NASA selected from 3,500 applications. The space agency chose nine new astronauts that year. Dr. Proctor was not one of them.

She applied twice more and was not even among the finalists.

She still pursued her space dreams in other ways. In 2013, Dr. Proctor was one of six people who lived for four months in a small building on the side of a Hawaiian volcano, part of an effort financed by NASA to study the isolation and stresses of a long trip to Mars.

She will be the pilot on the Inspiration4 mission, the first Black woman to serve as the pilot of a spacecraft.

Christopher Sembroski, 42, of Everett, Wash., works in data engineering for Lockheed Martin. During college, Mr. Sembroski worked as a counselor at Space Camp, an educational program in Huntsville, Ala., that offers children and families a taste of what life as an astronaut is like. He also volunteered for ProSpace, a nonprofit advocacy group that pushed to open space to more people.

Mr. Sembroski described himself as “that guy behind the scenes, that’s really helping other people accomplish their goals and to take center stage.”

He’ll be the mission specialist for Inspiration4, and responsible for certain tasks during the mission.

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