The crew for SpaceX and Shift4’s all-civilian Inspiration4 mission is now complete. The final two members of the groundbreaking mission were announced on Tuesday at the Kennedy Space Center in Floria, where the Falcon 9 rocket carrying Inspiration4’s Crew Dragon capsule will be launching later this year.
Joining 38-year-old Shift4Payments CEO Jared Isaacman and 29-year-old physician assistant Hayley Arceneaux will be 41-year-old Chris Sembroski, an Air Force veteran and educator working for Lockheed Martin, and 51-year-old Dr. Sian Proctor, an entrepreneur, educator, and trained pilot who has a passion for space.
The final two crew members representing the #Inspiration4 mission pillars of Generosity and Prosperity have been named! Stay tuned to meet the full crew today at 10AM ET live on the Inspiration4 YouTube channel! https://t.co/K6Owk59wK9 pic.twitter.com/hSQbsuU6as
— Inspiration4 (@inspiration4x) March 30, 2021
As per Inspiration4’s website, Sembroski will represent the virtue of Generosity, and Dr. Proctor will represent Prosperity. Isaacman represents the virtue of Leadership, while Arceneaux represents the virtue of Hope.
In an interview with TODAY‘s Tom Costello, Dr. Proctor remarked that being selected for the Inspiration4 mission felt like “opening up the chocolate bar and seeing the golden ticket to Willy Wonka and the chocolate factory.” She remarked that she had no worries about the mission at all, and that her reservations were actually more rooted in the prospect of the opportunity to go to space slipping by.
“I was more worried that this opportunity had slipped me by and I would never get the chance to go to space, but now here I am and that just shows you never give up because that moment for me is here… I’m ready. Just strap me in, let’s go!” she said.
As for Sembroski, launching from the Kennedy Space Center would be a rather symbolic experience. Twenty years ago, Sembroski showcased his passion for education and supporting passions by serving as a Space Camp counselor, an experience that he highlighted during his interview with TODAY.
And the last two crew members of Inspiration 4 are…
– Sian Proctor, scientist and science/space communicator. She was a finalist for NASA’s 2009 astronaut class.
– Chris Sembroski, an aerospace worker at Lockheed Martin who used to work on Minuteman missiles in the Air Force. pic.twitter.com/NIKIVwEEAw
— Emre Kelly (@EmreKelly) March 30, 2021
“I’ve taken that experience with me to really drive the passion for getting kids to seek their passion in science and technology and really spark the interest in those fields by using space as that medium, and then ever since it’s stuck with me,” he said.
Isaacson, for his part, remarked that he is extremely excited for the Inspiration4 launch. “This is a very real moment, but I can’t help but be overwhelmed just thinking about all of the history that came before us here. That’s what’s going through my mind, like the astronauts climbing into the Apollo missions and Skylab and the space shuttle. It’s just so incredible to be here,” he said.
The Inspiration4 crew would now be undergoing intensive training for their upcoming mission, which is expected to launch sometime this fall. Previously, Isaacson has noted that Inspiration4 could launch around October, but in his recent interview with the US media outlet, he noted that the mission could launch before the end of September instead. Such a timetable would give the crew just about six months to get fully trained and ready for a multi-day trip to space about 335 miles above Earth.
Watch TODAY’s segment on Inspiration4’s completed crew in the video below.
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Tesla states Giga Berlin workforce is stable, rejects media report
As per the electric vehicle maker, production and employment levels at the facility remain stable.
Tesla Germany has denied recent reports alleging that it has significantly reduced staffing at Gigafactory Berlin. As per the electric vehicle maker, production and employment levels at the facility remain stable.
Tesla denies Giga Berlin job cuts report
On Wednesday, German publication Handelsblatt reported that Tesla’s workforce in Gigafactory Berlin had been reduced by about 1,700 since 2024, a 14% drop. The publication cited internal documents as its source for its report.
In a statement to Reuters, Tesla Germany stated that there has been no significant reduction in permanent staff at its Gigafactory in Grünheide compared with 2024, and that there are no plans to curb production or cut jobs at the facility.
“Compared to 2024, there has been no significant reduction in the number of permanent staff. Nor are there any such plans. Compared to 2024, there has been no significant reduction in the number of permanent staff. Nor are there any such plans,” Tesla noted in an emailed statement.
Tesla Germany also noted that it’s “completely normal” for a facility like Giga Berlin to see fluctuations in its headcount.
A likely explanation
There might be a pretty good reason why Giga Berlin reduced its headcount in 2024. As highlighted by industry watcher Alex Voigt, in April of that year, Elon Musk reduced Tesla’s global workforce by more than 10% as part of an effort to lower costs and improve productivity. At the time, several notable executives departed the company, and the Supercharger team was culled.
As with Tesla’s other factories worldwide, Giga Berlin adjusted staffing during that period as well. This could suggest that a substantial number of the 1,700 employees reported by Handelsblatt were likely part of the workers who were let go by Elon Musk during Tesla’s last major workforce reduction.
In contrast to claims of contraction, Tesla has repeatedly signaled plans to expand production capacity in Germany. Giga Berlin factory manager André Thierig has stated on several occasions that the site is expected to increase output in 2026, reinforcing the idea that the facility’s long-term trajectory remains growth-oriented.
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Elon Musk gets brash response from Ryanair CEO, who thanks him for booking increase
Elon Musk got a brash response from Ryanair CEO Michael O’Leary, who said in a press conference on Wednesday afternoon that the Tesla frontman’s criticism of the airline not equipping Starlink has increased bookings for the next few months.
The two have had a continuing feud over the past several weeks after Musk criticized the airline for not using Starlink for its flights, which would enable fast, free, and reliable Wi-Fi on its aircraft.
Tesla CEO Elon Musk trolls budget airline after it refuses Starlink on its planes
Musk said earlier this week that he was entertaining the idea of purchasing Ryanair and putting someone named Ryan in charge, which would oust O’Leary from his position.
However, the barbs continued today, as O’Leary held a press conference, aiming to dispel any beliefs about Starlink and its use case for Ryanair flights, which are typically short in length.
O’Leary said in the press conference today:
“The Starlink people believe that 90% of our passengers would happily pay for wifi access. Our experience tells us less than 10% would pay; He (Elon) called me a retar*ed twat. He would have to join the back of a very, very long queue of people that already think I’m a retar*ed twat, including my four teenage children.”
He then went on to say that, due to Musk’s publicity, bookings for Ryanair flights have increased over the past few days, up 2 to 3 percent:
“But we do want to thank him for the wonderful boost in publicity. Our bookings are up 2-3% in the last few days. So thank you to Mr. Musk, but he’s wrong on the fuel drag. Non-European citizens cannot own a majority of European airlines, but if he wants to invest in Ryanair, we think it would be a very good investment.”
O’Leary didn’t end there, as he called Musk’s social media platform X a “cesspit,” and said he has no concern over becoming a member of it. However, Ryanair has been very active on X for several years, gaining notoriety for being comical and lighthearted.
🚨 Ryanair CEO’s comments on X and Starlink today at the planned presser.
Strange comments here, it just feels like it’s time to end all this crap https://t.co/NYeG95bM82
— TESLARATI (@Teslarati) January 21, 2026
The public spat between the two has definitely benefited Ryanair, and many are calling for it to end, especially those who support Musk, as they see it as a distraction.
Nevertheless, it is likely going to end with no real movement either way, and is more than likely just a bit of hilarity between the two parties that will end in the coming days.
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Tesla CEO Elon Musk outlines expectations for Cybercab production
“…initial production is always very slow and follows an S-curve. The speed of production ramp is inversely proportionate to how many new parts and steps there are. For Cybercab and Optimus, almost everything is new, so the early production rate will be agonizingly slow, but eventually end up being insanely fast.”
Tesla CEO Elon Musk outlined expectations for Cybercab production as the vehicle is officially set to start rolling off manufacturing lines at the company’s Giga Texas factory in less than 100 days.
Cybercab is specifically designed and catered to Tesla’s self-driving platform and Robotaxi ride-hailing service. The company has been pushing hard to meet its self-set expectations for rolling out an effective self-driving suite, and with the Cybercab coming in under 100 days, it now needs to push for Unsupervised Self-Driving in the same time frame.
Tesla CEO Elon Musk confirms Robotaxi is set to go unsupervised
This is especially pertinent because the Cybercab is expected to be built without a steering wheel or pedals, and although some executives have said they would build the car with those things if it were necessary.
However, Musk has maintained that the Cybercab will not have either of those things: it will have two seats and a screen, and that’s it.
With production scheduled for less than 100 days, Musk broke down what people should expect from the initial manufacturing phases, being cautiously optimistic about what the early stages will likely entail:
“…initial production is always very slow and follows an S-curve. The speed of production ramp is inversely proportionate to how many new parts and steps there are. For Cybercab and Optimus, almost everything is new, so the early production rate will be agonizingly slow, but eventually end up being insanely fast.”
Musk knows better than most about the challenges of ramping up production of vehicles. With the Model 3, Musk routinely refers to it as “production hell.” The Cybertruck, because of its polarizing design and stainless steel exterior, also presented challenges to Tesla.
With the important caveat that initial production is always very slow and follows an S-curve.
The speed of the production ramp is inversely proportionate to how many new parts and steps there are.
For Cybercab and Optimus, almost everything is new, so the early production…
— Elon Musk (@elonmusk) January 20, 2026
The Cybercab definitely presents an easier production process for Tesla, and the company plans to build millions of units per year.
Musk said back in October 2024:
“We’re aiming for at least 2 million units a year of Cybercab. That will be in more than one factory, but I think it’s at least 2 million units a year, maybe 4 million ultimately.”
When April comes, we will find out exactly how things will move forward with Cybercab production.