NASA spent three years promising they fixed the hydrogen leaks on their moon rocket.
Monday proved they were lying the whole time.
And NASA just admitted one awful truth about their $4 billion moon rocket.
NASA Can't Stop the Same Leak That's Been Plaguing Them Since 2022
NASA rolled out the Space Launch System rocket for what should have been a routine dress rehearsal Monday.
Engineers detected hydrogen leaking from the exact same connection that grounded the Artemis I mission for months back in 2022.
The leak appeared in the Tail Service Mast Umbilical where super-cold hydrogen flows from ground storage into the rocket's core stage at minus 423 degrees Fahrenheit.
NASA claimed they solved this problem years ago after Artemis I finally launched in November 2022 following three separate rollbacks to the Vehicle Assembly Building.
Turned out those "fixes" didn't fix anything.
Engineers watched hydrogen concentrations spike to 16% in the connector housing when the safe limit is 4%.
The launch team spent all day Monday trying every trick they knew to stop the leak.
They halted hydrogen flow to let seals warm up and reseat, adjusted propellant flow rates, and crossed their fingers the problem would magically disappear.
NASA finally got the rocket fully loaded with 750,000 gallons of fuel around 6 PM Monday evening.
But when they tried to complete the final 10 minutes of the countdown after midnight Tuesday, the leak rate spiked again and forced them to terminate the test at T-minus 5 minutes 15 seconds.
The Artemis II mission scheduled for February 8 just got pushed to at least March 6.
This Rocket Program Has Blown Through $35 Billion and Still Can't Launch On Time
Here's what NASA doesn't want taxpayers thinking about while they're scrambling to plug hydrogen leaks for the third year running.
NASA spent $29 billion developing the Space Launch System since 2011, which equals $35 billion when adjusted for inflation.
NASA's own Inspector General found the program will cost $4.1 billion per launch when you factor in ground operations and supporting infrastructure.
Compare that to SpaceX's Starship which aims for launch costs between $2 million and $100 million depending on reusability.
The SLS is a throwaway rocket where both stages get tossed in the ocean after every flight.
SpaceX builds rockets that land themselves and fly again the next day.
NASA spent a quarter century and tens of billions creating a rocket that costs 200 times more per flight than what private industry is building right now.
Government Accountability Office reports found NASA deliberately hid cost overruns by moving $889 million in expenses off the SLS budget books.
The agency's own officials told GAO investigators the program is "unaffordable" at current cost levels.
Congress originally mandated the first SLS launch happen by 2016.
That launch happened six years late in 2022 after NASA burned through billions in overruns and schedule delays.
Now the second flight is delayed again because the same hydrogen leak that plagued the first launch three years ago is back like NASA never fixed it at all.
Trump's NASA Administrator Knows This Rocket Is a Jobs Program Masking as Space Exploration
The SLS program survives because it spreads federal money across congressional districts in Alabama, Louisiana, Texas, and Florida.
Boeing gets paid billions as the prime contractor for the core stage despite production delays and quality control disasters.
Northrop Grumman supplies the solid rocket boosters, Aerojet Rocketdyne builds the engines, and the whole operation employs 20,000 people whose jobs depend on this rocket never getting cancelled.
Members of Congress protect SLS funding because it pumps money into their districts regardless of whether the rocket works or costs 40 times what private companies charge.
Trump Administration officials proposed cancelling SLS after Artemis III and switching to commercial alternatives like Starship that can do the same job for a fraction of the cost.
Congress rejected that proposal and explicitly mandated at least four more SLS flights after Artemis II.
NASA Administrator Jared Isaacman suggested using the two existing SLS vehicles for Artemis II and III then transitioning to commercial providers.
Whether Congress allows that middle ground remains uncertain since the political coalition backing SLS has blocked similar proposals for over a decade.
The four Artemis II astronauts who've been in medical quarantine since January 21 were released Tuesday to go home and wait for NASA to figure out how to stop hydrogen from leaking out of connections they claimed were fixed three years ago.
Reid Wiseman, Victor Glover, Christina Koch, and Canadian astronaut Jeremy Hansen were supposed to become the first humans to fly beyond Earth orbit in 53 years.
Instead they're watching NASA struggle with the same engineering problems that any competent private contractor solved years ago while charging taxpayers a fraction of what this government boondoggle costs.
Sources:
- Stephen Clark, "Unable to tame hydrogen leaks, NASA delays launch of Artemis II until March," Ars Technica, February 3, 2026.
- "NASA had 3 years to fix fuel leaks on its Artemis moon rocket. Why are they still happening?" Space.com, February 3, 2026.
- "NASA delays Artemis II launch due to hydrogen leak during rehearsal," CBC News, February 3, 2026.
- "Space Launch System Cost Transparency Needed to Monitor Program Affordability," U.S. Government Accountability Office, 2023.
- "Congress Funds NASA and SpaceX Differently. Here's Why That Matters," GovFacts, February 1, 2026.
- "NASA's SLS Rocket Faces Existential Crisis as Agency Confronts Spiraling Costs and Private Sector Competition," WebProNews, February 4, 2026.










