
Why Artemis II Was Scrubbed Until March (Now April) | NASA's Hydrogen Problem Explained
From Today In Space by Alex G. Orphanos, Science Communicator
February 7, 2026 · 10 min · Episode 403
About this episode
This episode discusses the reasons behind the delay of Artemis II and the challenges associated with cryogenic hydrogen as a rocket fuel.
This week on Today In Space...space nerds leave Florida disappointed as Artemis II is scrubbed until March (Now no earlier than April) — and cryogenic hydrogen does what it does best: leak. In this episode, we break down: Why liquid cryogenic hydrogen is both an incredible and deeply frustrating rocket fuel How Artemis I scrubbed three times in 2022 due to hydrogen leaks The forgotten history of the "Summer of Hydrogen" (1990) during the Space Shuttle era Why SLS inherits many of the same strengths — and weaknesses — as the Space Shuttle What this means for Artemis II launch timing in 2026 Hydrogen rockets are powerful, elegant, and environmentally cleaner — but they are also notoriously fickle. If you want to understand why scrubs are normal, why patience is required, and why Artemis II will eventually fly, this episode is for you. #Artemis2 #NASAArtemis #SpaceLaunchSystem #ArtemisScrub #TodayInSpace We'd like to thank our sponsors: AG3D Printing (go to ag3d-printing.com to learn more & start 3D printing today!) Support the podcast: • Buy a 3D printed gift from our shop - http://ag3dprinting.etsy.com Today In Space Merch: James Webb Space Telescope Model (3DPrinted)…
People in this episode
Host: Alex G. Orphanos
Topics covered
- Artemis II
- NASA
- cryogenic hydrogen
- rocket fuel
- space exploration
- launch timing
- hydrogen leaks
Keywords
- Artemis II
- NASA
- cryogenic hydrogen
- rocket fuel
- hydrogen leaks
- space exploration
- launch delay
- Space Launch System
- Artemis I
- Summer of Hydrogen
Sponsors
AG3D Printing
Mentioned in this episode
Organizations: NASA, Space Shuttle, Space Launch System
More episodes of Today In Space
- Artemis 2 Returns! Thoughts After Splashdown | One Week RECAP Since Crew Returned · April 18, 2026 · 22 min
- NASA Artemis 2 Mission RECAP | Days 2-7 | TLI Burn, Space Toilets, and the Humanity of Moon Science Missions! · April 8, 2026 · 16 min
- NASA Artemis 2 | Day 1 - Lift Off To The Moon! RECAP · April 3, 2026 · 54 min
- NASA's Ignition Plan PT3 | Roman Telescope, Mars SKYFALL, and SR-1 Freedom on the Eve of Artemis 2 · April 1, 2026 · 1h 16m
- NASA's Ignition Plan PT2 | To Build, or Not To Build...A Space Station in LEO & Lunar Orbit? · March 29, 2026 · 29 min
- NASA's Ignition Plan PT1 | My REACTIONS to the Update to Artemis & the Moon Base · March 27, 2026 · 53 min
Explore listener stats, chart rankings, contacts and more on the Today In Space podcast page.