NASA’s Artemis II mission produced upper-atmosphere disturbances extending more than 3,100 miles, according to a publicly available research manuscript. The findings raise questions about how rocket operations affect the environment through which GPS signals travel. Researchers measured atmospheric changes, however, not a demonstrated failure of navigation systems.

The Space Launch System rocket launched April 1, 2026, carrying four astronauts aboard Orion from Florida’s Kennedy Space Center. The mission sent the crew on a lunar flyby, testing systems needed for future exploration. The atmospheric research concerns that April flight, not a new launch or an ongoing emergency.

Reports describing an enormous atmospheric “hole” require an important distinction. Scientists use that term for a reduction in charged particles, not an opening through which Earth’s air escapes. Understanding what changed, and whether those changes affected equipment on the ground, involves separate scientific questions.

What the Artemis II Study Found

Jong-Min Choi and Charles C. H. Lin of Taiwan’s National Cheng Kung University led the analysis. Their team used observations from approximately 3,500 ground stations. It identified three disturbance episodes associated with liftoff and later engine burns.

One followed an upper-stage maneuver about 108 minutes after launch. Another accompanied Orion’s engine burn roughly 25 hours after liftoff. The episodes differed in size and intensity.

The later burns produced stronger disturbances despite using less powerful engines. The researchers attribute that difference to energy released directly at ionospheric altitudes. The largest structures stretched along the flight path.

An Atmospheric Hole Is Not Missing Air

The ionosphere is a region of the upper atmosphere containing electrically charged particles. As the National Oceanic and Atmospheric Administration explains, solar radiation strips electrons from atoms and molecules, creating this charged environment. Its properties influence radio signals used for communications and navigation.

That environment changes naturally with sunlight, solar activity and other conditions. It is not a solid shell that a rocket can puncture like a balloon. An ionospheric disturbance describes changes within the atmosphere, not the disappearance of the atmosphere itself.

Rocket exhaust can affect that region through more than one mechanism. The University of New South Wales’ research on rocket-induced disturbances describes chemical reactions that reduce charged-particle concentrations. Expanding exhaust can also generate acoustic and gravity waves that disturb the ionosphere.

Those processes should not be treated as interchangeable. A region with fewer charged particles and a wave traveling through those particles describe different features. Calling every large disturbance a “hole” obscures what researchers actually measured.

Why Artemis II Kept Firing Its Engines

The dramatic liftoff was only one stage of Artemis II’s journey. Reaching a lunar trajectory also required maneuvers after the spacecraft entered Earth orbit. Those later engine firings were planned mission operations, not evidence that the launch had failed.

According to NASA’s April 2 flight update, Orion’s main engine fired for five minutes and 50 seconds. The burn began at 7:49 p.m. Eastern and sent the spacecraft onto its path toward the moon. NASA identified it as the mission’s translunar injection maneuver.

As USA Herald reported during Orion’s departure from Earth orbit, the crew first spent roughly a day in an elongated orbit. That period allowed checks before the spacecraft continued toward the moon. The distinction matters because assessing a mission’s atmospheric effects cannot stop when the launch vehicle disappears from view.

How Atmospheric Changes Can Affect GPS

GPS receivers calculate their positions using signals transmitted by satellites. Those signals pass through the ionosphere before reaching equipment on Earth. Changes along that path can affect the measurements used to calculate location.

The NOAA Space Weather Prediction Center explains that GPS systems compensate for ordinary ionospheric conditions. When conditions become disturbed, those corrections may become less accurate. The resulting positioning error depends on the disturbance and the receiver’s capabilities.

Dual-frequency receivers offer an important protection. They compare signals at different frequencies to estimate and remove much of the ionosphere’s influence. Severe disturbances can nevertheless make signals harder to track or reduce positioning accuracy.

The stakes extend beyond a location marker on a phone. NOAA identifies precision satellite navigation as important to farming, construction, surveying and other activities. That makes atmospheric disturbances worth investigating, but it does not establish that Artemis II caused failures in those systems.

Artemis II and GPS: What the Findings Do Not Prove

The manuscript focuses on wave disturbances; its authors reserve electron-density depletions for separate research. It does not document a GPS-related vehicle accident. A measurable change in the atmosphere and a verified navigation failure are not the same finding.

Establishing an operational problem would require examining receiver performance during the event. Investigators would need to determine whether positioning errors occurred, how large they were and how long they lasted. They would also need to distinguish those errors from other possible causes.

A claim that a launch caused an autonomous vehicle to change lanes would require an additional chain of evidence. An atmospheric measurement alone cannot establish how a vehicle interpreted its surroundings or responded. Possible consequences should therefore remain separate from documented incidents.

This does not make the research irrelevant to safety. It identifies a phenomenon that equipment designers and mission planners may need to understand better. The next step is testing the practical consequences rather than assuming the worst outcome occurred.

Rockets Have Disturbed the Ionosphere Before

Artemis II is not the first mission associated with changes in this region. A 2018 study published in the journal Space Weather examined a Falcon 9 launch carrying Taiwan’s FORMOSAT-5 satellite. That rocket lifted off from California in August 2017.

Researchers identified large circular atmospheric waves followed by an ionospheric depletion. They linked the unusual pattern to the rocket’s steep ascent and the effects of its exhaust. Their analysis also considered whether the depletion could introduce errors into satellite navigation measurements.

That earlier work provides context without making the events identical. Different trajectories, engine operations and atmospheric conditions can produce different patterns. A long disturbance along a flight path should not automatically be compared with a circular depletion as though both measurements describe the same phenomenon.

The broader lesson is that reaching space does not end a rocket’s interaction with its surroundings. Studying those interactions has practical value alongside measuring launch performance. It also helps distinguish familiar effects from genuinely unusual observations.

The Next Question Is Navigation Reliability

Monitoring already plays a role in managing ionospheric hazards. The European Space Agency’s space-weather service describes how disturbances can affect radio applications and how forecasts can warn users about reduced performance. It also identifies monitoring as a way to improve corrections for some systems.

Applying that approach to rocket operations requires more than detecting a disturbance afterward. Useful warnings would need to identify where problems might occur, which systems could be affected and how long the conditions might persist. Any proposed precautions would then need testing against actual equipment performance.

The engineering question is therefore more useful than the image of a rocket tearing open the sky. Can mission planners predict these effects, and can navigation providers compensate for them? Answering those questions would turn an unusual atmospheric observation into information people can use.

A measured disturbance is not proof of a navigation failure. But understanding the difference is precisely why the research matters. Future assessments should connect atmospheric measurements with receiver performance, establishing the real consequences rather than relying on the most alarming description.