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Photo: Patrick Pleul/picture alliance via Getty Images

SpaceX CEO Elon Musk pledged $50 million to St. Jude Children’s Research Hospital hours after the Inspiration4 crew splashed down on Saturday.

Why it matters: The all-civilian spaceflight was created, in part, as a fundraiser for St. Jude to raise $200 million. The mission had received $100 million from billionaire Jared Isaacman, who purchased the flight, and raised an additional $60.2 million before Musk's contribution, according to CNBC.

  • The spaceflight launched on Wednesday and spent three days in orbit before returning to Earth. The crew members included Haley Arceneaux, a physician assistant at St. Jude who was treated by the hospital as a child.
  • The fundraiser ultimately raised more than $210 million, per CNBC.

Go deeper

Sep 14, 2021 - Podcasts
How It Happened

The Next Astronauts Part IV: Risk

In part four of How it Happened: The Next Astronauts, Axios space reporter Miriam Kramer learns how the Inspiration4 crew is grappling with risk, something every company in the space industry and all astronauts must confront.

  • Kramer speaks with the crew, the parent of a crew member, and a former NASA safety expert about how memories of the Challenger explosion have shaped the way the space industry prepares astronauts for risk.
Oct 5, 2021 - Podcasts
How It Happened

The Next Astronauts Part V: The Launch

In part five of How it Happened: The Next Astronauts, Axios space reporter Miriam Kramer follows the Inspiration4 crew to the Kennedy Space Center in Cape Canaveral, Florida, to cover their launch and catches up with each of them after their return.

  • Kramer takes listeners to the press center at the Kennedy Space Center and inside of a pre-launch press conference with the four civilian astronauts the day before launch.
  • Kramer reports on the launch from on the ground and analyzes the livestream hosted by SpaceX, including the abrupt termination of real-time access to the crew once they reached orbit.
  • She tracks the crew during their three days in orbit, their high-risk descent back through the Earth's atmosphere, and what the safety and success of the mission means for the entire industry going forward.

Subscribe to How It Happened wherever you listen to podcasts.

  • For more of Miriam Kramer's space reporting, subscribe to Axios Space.

Credits: The Next Astronauts is reported and produced by Miriam Kramer, Amy Pedulla, Naomi Shavin, and Alice Wilder. Dan Bobkoff is Executive Producer. Mixing, sound design, and music supervision by Alex Sugiura. Theme music and original score by Michael Hanf. Fact-checking and research by Jacob Knutson. Alison Snyder is a managing editor at Axios and Sara Kehaulani Goo is executive editor. Special thanks to Axios co-founders Mike Allen, Jim VandeHei and Roy Schwartz.

Updated 1 hour ago - Health

NYC firefighters union urges members to defy mayor's vaccine mandate

New York City Mayor Bill de Blasio. Photo: Michael M. Santiago/Getty Images

The president of New York City's firefighters union told reporters Wednesday that he's advised unvaccinated members to ignore Mayor Bill de Blasio's COVID-19 vaccine mandate for city workers, per Reuters.

Why it matters: Under de Blasio's order that's due to take effect Friday, unvaccinated city employees would be placed on unpaid leave. But Uniformed Firefighters Association head Andrew Ansbro said he told members that "if they choose to remain unvaccinated, they must still report for duty," according to Reuters.