NASA’s new administrator, Jared Isaacman, also had questions when he takes office in December 2025. But in January, after a review, Isaacman announced that he had “full confidence” in Orion’s heat shield using the new entry profile. He invited Ars Technica to Washington, DC, to sit in on a technical briefing at that time. From this detailed information, it certainly appears that NASA did hard work and testing to support its decision.
Still, you have to fly to be convinced. And this is what will happen this evening.
“There’s no doubt I would be concerned,” Amit Kshatriya, the space agency’s top civil servant, said this week. “We’re done. It’s impossible to say that you have no irrational fears left in your mind. But I have no rational fears.”
to splash
After the heat shield takes the brunt of the overheating, Orion will remove the “forward bay cover” on top of the spacecraft at about 35,000 feet. This protective cover must be removed for three small, drogue parachutes to deploy at approximately 22,000 feet. After the three pilot parachutes have deployed, the main parachutes are scheduled to arrive at an altitude of approximately 6,000 feet. Its purpose is to slow the spacecraft to 20 mph upon splashdown.
Parachutes have been deployed from returning spacecraft for nearly seven decades. Still, it’s a nervous moment because there is no backup. If they fail, the mission fails.
Under nominal re-entry, the crew would experience two brief periods of 3.9 Gs. However, in some scenarios, these g-loads can reach 7.5 gs, said entry flight director Rick Henfling.
After splashdown, the recovery team from the U.S.S. John P. Murtha Will approach Orion and deploy an inflatable device on Orion’s hatch, known as the “front porch”. Winds and seas are forecast to remain calm in the recovery area. Recovery crew members, in the nominal scenario, would first extract astronaut Christina Koch, followed by Victor Glover, Jeremy Hansen, and finally Wiseman.
They will then be flown back to the recovery ship by two helicopters for initial checkout. If all goes well, the winning astronauts will fly back to Houston on Saturday morning to meet their family members.
<a href