The SLS rocket that will carry the next Artemis crew was lying on its side in the Vehicle Assembly Building transfer aisle on Friday, being weighed. Across the street, NASA leaders laid out in detail what that rocket is being built to do next year when it flies on the Artemis III mission.

Artemis III will not land on the moon. Instead, NASA will use it to rehearse nearly everything a landing will require, all within reach of home in low Earth orbit. Think of it as the Artemis version of Apollo IX, which saw NASA astronauts Jim McDivitt, Rusty Schweickart and Dave Scott put the program’s lunar lander through its paces in low Earth orbit. Artemis III, while similar, is a much more ambitious mission and to make it happen, three of the most powerful rockets in the world will launch from the Space Coast within about a week to make it happen.

Once aloft in LEO, Orion will rendezvous with two different lunar lander prototypes and conduct engineering checks to inform the Artemis IV and Artemis V hardware that will attempt to land on the Moon. In short, a successful Artemis III will greenlight the first lunar landing attempt in 53 years.

Artemis Program Manager Jeremy Parsons walked reporters through the plan at a news conference at Kennedy Space Center. He called it “what is likely the most complicated launch campaign ever undertaken.”

“There is literally every hour already planned out in the timeline,” Parsons said, referring to the three-launch campaign plan. Undoubtedly, the mission itself already had every hour planned, too.

The Mission Plan

NASA has baselined Artemis III as a 14-day mission, with room to stretch to 17 days if weather or other delays push a launch. Orion and its four astronauts will rendezvous and dock with two different commercial lunar landers in Earth orbit. One is Blue Origin’s Blue Moon test lander and the other is a SpaceX Starship.

The order of operations matters, and Space Coast residents will see and hear it all. SLS will already be at Launch Pad 39B with a wet dress rehearsal complete before Blue Origin launches first.

Blue Moon can loiter in orbit for up to a month, but Parsons said NASA wants to keep that window as short as possible. Under the plan he described, the pad infrastructure shifts to Blue Origin for its launch, and SLS follows a couple of days later.

Here is how the flight unfolds, according to Parsons:

Why Low Earth Orbit?

In a word: safety. Parsons said NASA is teaching teams how to choreograph a multi-launch campaign and make real-time mission decisions in an environment “where if something goes wrong, we can come home much more quickly.”

This plan has a bit of a complication that has long gone unaddressed in the Artemis Program: Orion was designed as a deep space vehicle, and low Earth orbit is actually a harder thermal environment for it because the temperature swings of the daylit side of Earth followed by the extreme cold of space above Earth’s nightside, are faster than what would be normal deep space operations for the capsule and service module. That is why the spacecraft is planned to gradually descend from its insertion orbit over the first day as it adapts to the LEO environment. Orion will be fine, but it must initially use a relatively complex orbital regime compared to a LEO-designed capsule like SpaceX’s Crew Dragon.

Blue Moon

The Blue Moon docking is the bigger systems test. That lander carries many of the same systems that will fly to the moon, including life support, reaction control thrusters, tanks and valves, articulating solar arrays and the primary structure of the lunar crew module. Parsons said that structure will be the same one used on Artemis IV.

Starship HLS

The Starship portion is shorter and focused on how two very large vehicles fly together. Parsons said NASA wants to understand the docking forces and how to control attitude with the two spacecraft joined.

Science and Data Gathering

The science manifest includes four Human Research Program studies building on Artemis II. A separate proof-of-concept study will test how a crew could run its own health assessments when Mission Control is out of reach. The crew will also complete Orion Crew Survival System suit evaluations that did not get done on Artemis II.

Blue Origin: Rebuilding a Pad and Building a Lander at the Same Time

Blue Origin is working on two fronts at once. It is recovering New Glenn’s launch pad after the May incident while building the Blue Moon test lander that Artemis III will dock with.

NASA’s Artemis Program Manager, Jeremy Parsons said more than 100 NASA personnel are working the return-to-flight effort alongside the company and the FAA. “I have seen Blue Origin mobilize an absolute army working around the clock to get them back to flight,” he said. The company is targeting a restart of pad operations in November, with a New Glenn launch soon after.

NASA Administrator Jared Isaacman toured the pad rebuild and said the pace has surprised the agency. “There is a fire in the Blue Origin team like we haven’t ever seen before,” he said. “So whether they hit December or wind up in January, they’re breaking everyone’s records.”

Asked whether NASA still has the option to launch the test lander on a different rocket, Parsons said, “At this point in time, no, we are not.” Isaacman said separating the lander effort from the pad investigation was important so one would not slow the other. He added that Blue Origin is “proving a lot of people wrong in terms of how fast they’re recovering their pad.”

Module 9 done. Standing tall again at LC-36! The Vehicle Access Tower is fully assembled, with every module repaired and back in place. This was a monumental effort. Proud of Team Blue. pic.twitter.com/dSI2ENcU0H

— Dave Limp (@davill) October 24, 2026

The lander itself is coming together largely in Brevard County. The lunar crew module domes have been fabricated and are in final machining. They will begin arriving at Blue Origin’s Lunar Plant 1 near KSC, where welding of the crew module starts in the next couple of months.

“A lot of these parts weren’t even necessarily fully designed six months ago,” Parsons said.

Here is where the rest of the Blue Moon test lander stands, according to NASA’s Parsons:

The lander is also where Artemis III’s 90-day schedule slip lives. Parsons said avionics supply was the main driver, with some components losing out to higher-priority defense orders. Blue Origin has responded by investing directly in a supplier to speed up the build. Given that this is all coming together

NASA has thrown its own resources at the problem. Isaacman said a large dome for the test lander was about 23 days behind until a military C-17 moved it across the country. NASA has also sent civil servant welders from Marshall to help vendors.

Parsons described how one Blue Origin leader opens every meeting with the day count to launch, the days since the announcement and the five areas that need attention. “They just keep a laser focus on it,” he said.

Looking ahead to Artemis IV, Blue Origin plans to use three tugboat-style transfer stages based on its Mark 1 lander to move the crewed Mark 2 to lunar orbit. The first uncrewed Mark 1 cargo lander is set to launch next year. NASA’s Glenn Research Center is preparing a three-engine test of Blue Origin’s BE-7 engine at the Armstrong Test Facility in Ohio.

SpaceX: Flight Tests, Fuel Depots and a Docking Nose Cone

SpaceX’s path to Artemis III looks different. The company is flying hardware rapidly and fixing problems between flights.

Starship Flight 14 in late September was the first orbital flight of the Version 3 vehicle. Parsons said NASA and SpaceX have completed a data review. Flight 15, likely in November, could include returning to the launch site and catching both the booster and the ship.

SpaceX traced repeated Raptor engine relight failures during boostback and landing to a root cause. It flew quick fixes on Flights 13 and 14, and an improved Raptor with permanent hardware changes is coming for Flight 15.

“These sorts of changes in this timeline would be unthinkable in standard industry history,” Parsons said.

This is true.

The Artemis III vehicle is the simplest piece of SpaceX’s work. Parsons said NASA will “yank essentially an off-the-line Starship” and add a nose cone carrying a passive docking system. The docking hardware and its protective aero cover are fully designed, with a fit check next month at Marshall.

“I don’t expect that to be a long-lead item,” Parsons said. NASA is delivering software emulators to SpaceX, and the company’s simulators will be used for crew training.

The harder problem is refueling in orbit. SpaceX is targeting early 2027 for a propellant transfer demonstration, launching two Starships in quick succession. One will fly from Boca Chica and one from KSC.

Asked about a panel estimate of 22 refueling flights per lunar mission, Parsons said NASA “was definitely not tracking as high as 22.” He pointed to Elon Musk’s estimate of six to eight. Early conservative estimates put propellant losses during transfer at 5% to 10%, and the demo will narrow that down.

Isaacman said the eventual number depends on how much payload SpaceX can lift to orbit, which is still climbing. He said the company is aiming for a near-weekly launch cadence across 14 or 15 pads in Texas, Louisiana and Florida.

Locally, the Starship footprint at KSC keeps growing. Parsons said SpaceX is building out its Starship pad at the space center and finishing its new Gigabay. The first Starship launch from Florida is expected in the coming months.

Bloomberg’s Loren Grush asked whether SpaceX’s other ambitions, from Starlink to orbital data centers, could pull it away from its lunar lander obligations. Isaacman said he has seen the opposite. He said SpaceX solves its hardest problems in order: reusability, heat shield and engine reliability first, then propellant transfer, then crew systems.

“If you can’t sort out prop transfer, it doesn’t make sense to spend a lot of your best engineering resources on habitation modules,” he said. He added he has “seen no indication that returning astronauts to the moon and building a moon base isn’t one of their greatest priorities.”

Isaacman also defended the cost of NASA’s lander contract. He pointed to SpaceX’s recent $100 billion IPO and said taxpayers are covering about 3.5% of what Starship will cost. He called that “pretty considerable value.” Compared to old cost-plus contracts, Isaacman makes a great point: the US stands to gain the most capable spacecraft ever flown for dimes on the dollar compared to building a lander internally.

Here is what’s ahead for SpaceX, according to Parsons:

On the crew cabin taking shape for the lunar Starship, Parsons sounded like he would volunteer. “I would be much more excited to stay in this vehicle than an Apollo-style mission for our crews,” he said.

And with that, Artemis III’s general plan is coming into sharper focus. Many things are in motion, many things must be completed and many people are working feverishly to get the job done. That’s clear at the Cape, where there is activity day and night at multiple spots, and it’s clear too that NASA’s senior management has been burning the midnight oil in their own right to get a difficult but achievable goal set, planned and in motion.

Final Comment:

Quite frankly, NASA under Jared Isaacman is starting to resemble the NASA golden era led by Jim Webb in the mid-1960s as Apollo hit its stride. His leadership has righted the ship, gotten everyone pulling the oars as hard as they can, and he has pointed them in the right direction.

Isaacman has made the tough calls where they’ve been needed, and he’s put the right people on the problem where they are needed, when they are needed. That said, Artemis III is well on track and so long as everyone does their job, it will happen next summer as planned.

Stay Tuned.