See SpaceX's Polaris Dawn mission: The daring 5-day spaceflight that's revolutionized the commercial space industry

• The billionaire-funded Polaris Dawn mission completed its historic spaceflight on Sunday.
• The crew completed the first private spacewalk and first violin performance in space.
• Photos show what the jam-packed schedule was like for its daring four-person crew.

Polaris Dawn finished its revolutionary spaceflight on Sunday when the four-member crew splashed down off Florida's coast after spending five days in Earth's orbit on the most ambitious commercial space mission, yet.

Though the mission was funded and commanded by a billionaire, this was no space-tourist joyride . Polaris Dawn was a scientific expedition .

The crew conducted medical experiments as they flew through belts of extreme radiation, used new Starlink space-laser communications, and tested out new spacesuits in the first-ever private spacewalk .

"We got a jam-packed schedule," Scott Poteet, the mission pilot, told The Washington Post in an interview from orbit.

Photos offer an inside look at what the Polaris Dawn mission was like, from launch to landing.

Meet the Polaris Dawn crew: Jared Isaacman, the billionaire bankrolling the project was mission commander. Scott Poteet was the mission pilot. Anna Menon and Sarah Gillis were the mission specialists.

They launched into space aboard a Crew Dragon spaceship on September 10.

They flew farther from Earth than anybody has traveled since the last Apollo mission, over 50 years ago.

That sent them through the Van Allen belts, a pair of donut-shaped regions of extreme radiation around Earth.

The crew conducted a dizzying array of experiments to study the effects of radiation on their bodies, helping SpaceX prepare for future human missions to the moon and Mars.

They wore "smart" contact lenses to measure the pressure in their eyes.

The crew also tested SpaceX's Starlink satellites, which provide internet to rural communities on Earth. Turns out, Starlink works in space, too. They beamed this photo to Earth using a new Starlink laser system.

On September 12, it was time for the mission's main event: a daring and risky spacewalk, the first-ever private spacewalk. To prepare, the crew conducted a 48-hour "pre-breathe" before opening the spaceship's hatch and exposing the ship and everyone aboard to the vacuum of space. Without the "pre-breathe" the crew would be at risk of a dangerous effect called "the bends." Finally, it was time to open the Dragon's hatch and climb the railing into space. Isaacman and Gillis left the spacecraft to perform tests on their spacesuits.

“It’s gorgeous,” Isaacman said as he looked around. “Back at home, we all have a lot of work to do, but from here, Earth sure looks like a perfect world.”

Isaacman and Gillis each took turns standing in space and testing their suits' mobility. You can watch the whole spacewalk on SpaceX's broadcast, below. "Stepping out and seeing kind of the cusp of the world is absolutely incredible," Gillis told The Washington Post a few hours later.

The spacewalk lasted less than two hours. "It felt as if the time just slipped away," Gillis said. "I wish we had maybe just a couple more minutes to see it and experience it and take it all in.”

Polaris Dawn was a mission of historic firsts. Lifelong violinist Gillis became the first person to play a violin solo in space.

She chose "Rey's Theme" from "Star Wars: The Force Awakens," and was accompanied by video performances from orchestras on Earth. On their last full day in space, the crew used Starlink to video chat with their friends and families.

Then it was time to strap in for the return journey home.

As the capsule plummeted back to Earth, the crew crossed their arms to prepare for splashdown. Parachutes deployed, and the capsule descended into the Gulf of Mexico about 70 miles from Key West.

"We are mission complete," Isaacman radioed from the capsule as it bobbed in the water. Shortly after, a SpaceX ship recovered the capsule, and the crew emerged after their successful five-day mission.

Isaacman hopes humanity will one day become a spacefaring species and aims to help make that happen with Polaris Dawn. "In the future, tens of thousands of people will be working in space on multiple space stations, lunar bases, and Mars outposts and not all of them will be government astronauts," Isaacman wrote on X after returning to Earth.

Read the original article on Business Insider