G3 storm hits crew; NASA stays silent

An M7.5 solar flare fired at 01:17 UTC on 4 April, triggering an R2 Moderate radio blackout ¹. No mainstream outlet had covered this flare at the time of publication. Update 2 showed the same gap: the GOES-19 electron flux alert that exceeded 1,000 pfu on 3 April also went unreported. On 4 April the flux alert continued, with a prior-day maximum of 4,465 pfu ².

Each reading feeds the Michigan forecasting models and SRAG's operational picture, yet none has reached the public. The space weather escalation chain across this mission now runs: X-class flare at launch , G1 watch, G2 storm , G3 peak, M7.5 flare. Each step exceeded the prior severity level.

The White House released its FY2027 NASA budget proposal on 3 April, one day after four astronauts left Earth orbit ¹. The request: $18.8 billion, a 23% cut from the $24.4 billion Congress enacted for FY2026, identical in top-line to the FY2026 proposal that Congress rejected.

Artemis receives $8.5 billion, a 10% increase, with $731 million more than the prior year and a new $175 million investment for robotic missions near the Moon's South Pole. The cost falls on science: the Science Mission Directorate loses $3.4 billion , a 47% cut that eliminates 40+ missions ². STEM education is zeroed out entirely. The ISS budget drops $1.1 billion.

Administrator Jared Isaacman stated NASA must "spend smarter, not spend more" ³. Representative Zoe Lofgren, Ranking Member of the House Science Committee, called the proposal a document that "should be ignored" ⁴. Over 100 Congressional members had already requested $9 billion for NASA science in a 13 March letter.

Congress mandated $1.025 billion annually for SLS through FY2029 via the One Big Beautiful Bill Act , which means Artemis continues regardless of what the White House proposes. Isaacman had already cancelled SLS Block 1B and Block 2 upgrades in February ; the budget proposes redirecting $2.6 billion from the cancelled Gateway programme toward a lunar base camp. Whether Congress writes a different number, as it did last year, is the open political question.

Jeremy Hansen disclosed at a CSA media call at 01:10 ET on 4 April that a "cabin leak suspected" warning appeared on crew displays during preparation for the translunar injection burn on 2 April ¹. Hansen described the moment: "You go right from doing this burn and you're heading to the Moon to thinking, are we going to have to cancel this burn, start getting into our spacesuits and figuring out how to get home in a day or less?" ²

Flight Director Judd Frieling confirmed the alarm was false: "That was a false indication. We quickly knew that there was no leak" ³. Houston verified cabin pressure was holding. The burn proceeded. The crew is heading to the Moon.

This was the fourth anomaly since launch and the one with the highest potential consequence. A genuine cabin leak at the moment of irreversible commitment to lunar trajectory would have ended the mission. It does not appear in any NASA blog post. It appeared because a Canadian journalist asked a Canadian astronaut a question at a call hosted by CSA President Lisa Campbell ⁴.

NASA cancelled the first of three planned outbound trajectory correction burns on Day 3 because Orion's trajectory was already precise enough not to need it ¹. Programme Manager Howard Hu confirmed: "Our navigation performance and our ability to get ranging has been outstanding" ².

The European Service Module's shuttle-heritage OMS-E engine delivered a TLI burn accurate enough that the spacecraft needed no correction over three days of translunar coast. Any needed adjustment will be folded into the two remaining burns. The cancelled burn would have lasted only seconds; skipping it saves propellant that extends margins for remaining burns and contingencies.

Mission Specialist Christina Koch added: "We can see the Moon out of the docking hatch right now. It's a beautiful sight" ³. For a programme whose critics cite its $4 billion per flight cost , the hardware is delivering.

Hansen spoke at the CSA media call for approximately 20 minutes. He was diplomatic on international partnership: "collaboration needs to be the ultimate goal for humanity." He was candid on the experience: "riding the rocket felt so different in real life" ¹. He did not mention Canadarm3 or Gateway. No journalist asked.

Canada is celebrating an astronaut while silently absorbing a $1 billion CAD programme cancellation . The Canadian government has not addressed the public. MDA Space, the contractor, has separately reassured investors that Canadarm3 remains active under CSA contracts and can be adapted for alternative lunar infrastructure.

Hansen's pre-flight position, from a SpaceQ interview in January: "It is up to the international partnership" ².

Mission Specialist Christina Koch reported a burning smell from the toilet hygiene bay on the night of Day 3, resembling "an old electric heater switching on." Flight controllers suspected orange insulation on the hygiene bay door and cleared the system for continued use. The toilet has now generated two separate anomaly reports since launch, distinct from the Day 1 fan fault .

Orion crosses the lunar sphere of influence on Day 5 (Sunday, 5 April), the point where the Moon's gravity exceeds Earth's gravitational pull on the spacecraft. Three days after the TLI burn committed the crew to a free-return trajectory, the crew is now closer to the Moon than to Earth.

Day 5 includes donning Orion Crew Survival System suits, pressurisation checks, and eating and drinking through helmet ports, validating the emergency systems the crew would rely on in a depressurisation event. The cabin leak false alarm during TLI preparation demonstrated these suits are not a theoretical precaution.