NASA SLS Rocket Punched a Hole in Earth's Upper Atmosphere
NASA's Space Launch System (SLS) rocket is designed to send astronauts beyond Earth's orbit and toward the Moon. But its powerful launch may have produced an unexpected effect much closer to home: enormous disturbances in the upper atmosphere.
A new analysis of the Artemis II mission suggests that the rocket created two large ionospheric holes, raising questions about how powerful rocket launches can affect GPS signals and other technologies.
NASA's SLS Rocket and the Unexpected Atmospheric Effect
Rocket launches are usually discussed in terms of thrust, payload capacity, engine performance, and mission success. However, a rocket does not simply travel through the atmosphere without leaving a trace. Its exhaust releases gases and energy that can interact with the electrically charged region of Earth's upper atmosphere.
That interaction became an important subject of research following NASA's Artemis II mission. The Space Launch System, or SLS, launched the Orion spacecraft on April 1, 2026, carrying astronauts on the first crewed Artemis flight. The mission later returned to Earth on April 10, 2026.
Researchers examining the launch identified two substantial disturbances in the ionosphere. These features are commonly described as ionospheric holes because the concentration of free electrons in affected areas becomes lower than in the surrounding atmosphere.
The discovery attracted attention because of the reported scale of the disturbances and their potential relationship with satellite navigation signals.
What Is the Earth's Upper Atmosphere?
Earth's atmosphere is divided into several layers. The ionosphere is a region of the upper atmosphere containing electrically charged particles, including free electrons and ions. It overlaps parts of the mesosphere and thermosphere and is especially important for radio communication and satellite navigation.
Sunlight, particularly ultraviolet and X-ray radiation, ionizes atoms and molecules in this region. As a result, the ionosphere contains a changing population of charged particles. Its condition varies with time of day, solar activity, season, and other atmospheric conditions.
GPS satellites transmit radio signals that travel through the ionosphere before reaching receivers on the ground. Because the charged particles can influence the speed and path of radio signals, changes in electron density can introduce errors into positioning calculations.
What Is an Ionospheric Hole?
An ionospheric hole is an area where the concentration of free electrons becomes noticeably lower than it is in the surrounding ionosphere. It is not a physical opening in the atmosphere, and it does not mean that the sky has developed a literal hole.
Rocket exhaust can help create these disturbances. Water vapor and hydrogen-containing exhaust products can interact with oxygen ions in the upper atmosphere. Chemical reactions can then reduce the number of free electrons in the affected region.
The resulting area of reduced electron density may expand, change shape, and gradually recover as atmospheric chemistry, sunlight, and the movement of charged particles restore the local balance.
How Did the Artemis II SLS Launch Create Two Ionospheric Holes?
The analysis of the Artemis II launch identified two separate disturbances associated with different stages of the rocket's flight. Researchers used data from high-precision ground-based GPS receiver networks to examine changes in the ionosphere.
1. The disturbance associated with the SLS core stage
The first disturbance was associated with the passage of the SLS core stage. The core stage is the large central section of the rocket, measuring approximately 212 feet (65 meters) in length.
As the rocket climbed through the atmosphere, its exhaust interacted with the surrounding environment. The researchers identified an ionospheric disturbance associated with this part of the launch.
2. The disturbance associated with the upper-stage engine burns
The second disturbance was associated with two upper-stage engine burns. These burns took place at an altitude of approximately 115 miles (185 kilometers), more than an hour after liftoff.
According to the reported analysis, this later event produced the more prominent disturbance. It is an important reminder that a rocket's influence on the upper atmosphere does not necessarily end when its main stage separates.
| Launch event | Associated rocket section | Reported detail |
|---|---|---|
| First disturbance | SLS core stage | Associated with the rocket's ascent through the atmosphere |
| Second disturbance | Upper-stage engine burns | Occurred at approximately 115 miles (185 km) altitude |
| Horizontal extent | Both reported disturbances | Approximately 3,100 miles (5,000 km) |
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How Large Were the Atmospheric Holes?
One of the most striking details in the reported findings is the horizontal scale of the disturbances. Each was described as extending approximately 3,100 miles, or around 5,000 kilometers, across the continent.
That is an enormous distance for a disturbance associated with a single rocket launch. However, the figure describes the reported horizontal extent of the ionospheric features. It should not be interpreted as a 3,100-mile-wide physical opening or a visible gap in the atmosphere.
The ionosphere is a dynamic environment. A disturbance can spread far from the rocket's immediate path as atmospheric conditions and charged-particle movement shape its development.
Could the NASA SLS Rocket's Atmospheric Hole Affect GPS Signals?
This is one of the most important questions raised by the research. GPS receivers calculate their positions by measuring signals transmitted by satellites. Those signals must pass through the ionosphere before reaching receivers on Earth.
When electron density changes, the ionosphere can alter the propagation of radio signals. If a GPS receiver does not fully account for those changes, its calculated position may become less accurate.
The Artemis II analysis suggested that the disturbances could contribute to positioning errors of several meters under certain conditions. The actual effect would depend on the receiver, signal path, correction systems, and the location and timing of the disturbance.
What Could This Mean for Self-Driving Cars and Drones?
Modern navigation systems are used by far more than ordinary smartphone users. Autonomous vehicles, commercial drones, surveying equipment, precision agriculture systems, and other technologies can depend on accurate satellite positioning.
A positioning error of several meters could matter in applications that require highly precise location data. For example, a drone performing a close-range inspection or a vehicle operating with high-precision navigation may need additional correction information to maintain accuracy.
However, the practical risk should not be exaggerated. Many professional systems combine GPS with other sensors, correction services, inertial navigation, cameras, radar, or other technologies. These systems can help reduce the impact of ionospheric errors.
Potentially affected technologies
- Autonomous vehicles: High-precision positioning systems may need to account for atmospheric disturbances.
- Commercial drones: Navigation accuracy may be affected when a drone depends heavily on satellite positioning.
- Surveying equipment: Precision measurements can be sensitive to ionospheric conditions.
- Aviation: Satellite-based navigation systems must account for ionospheric effects through suitable monitoring and correction systems.
- Smartphones: Everyday location services may experience accuracy variations, although the actual effect depends on local conditions and device capabilities.
How Long Does an Ionospheric Hole Last?
Ionospheric holes are temporary. They do not remain in the atmosphere permanently. Their lifetime depends on factors such as altitude, the amount and type of exhaust released, sunlight, atmospheric chemistry, and the movement of charged particles.
Earlier scientific observations have documented rocket-related ionospheric disturbances that develop within minutes after launch and evolve over time. Some disturbances can recover within a relatively short period, while others may remain detectable for longer.
A peer-reviewed 2024 study examining two earlier Chinese rocket launches found that ionospheric holes could develop roughly 10 to 11 minutes after launch. The researchers observed changes in electron density and vertical development at different atmospheric altitudes.
These earlier observations provide useful scientific context, but they should not be treated as a direct measurement of the exact lifetime of the two Artemis II disturbances.
Is This the First Time a Rocket Has Created an Ionospheric Hole?
No. Rocket-induced ionospheric disturbances have been studied for years. Scientists have observed changes in electron density after different rocket launches, including launches involving powerful engines and substantial exhaust releases.
The 2024 research published in the Journal of Geophysical Research: Space Physics examined the vertical structure and evolution of ionospheric holes created by two earlier rocket launches in China.
That study showed how rocket exhaust can influence the distribution of charged particles at different altitudes. It also demonstrated why ground-based radar and satellite-navigation measurements are useful for investigating these events.
What makes the Artemis II case particularly interesting is the reported scale of the disturbances and the fact that the launch involved NASA's SLS rocket during a crewed lunar mission.
Does an Ionospheric Hole Mean the Ozone Layer Was Damaged?
No. An ionospheric hole and ozone depletion are different scientific phenomena. The ionosphere is characterized by electrically charged particles, while the ozone layer is a region of the stratosphere containing a relatively high concentration of ozone molecules.
An ionospheric hole refers to a reduction in free-electron density. It does not mean that a physical hole has opened in the ozone layer, and the Artemis II findings discussed here should not be presented as evidence of ozone-layer destruction.
Why This Matters for Future NASA Artemis Missions
NASA's Artemis program is intended to support a sustained human presence around and eventually on the Moon. As more powerful rockets are launched and missions become more frequent, scientists will have additional opportunities to study how rocket exhaust interacts with Earth's upper atmosphere.
Understanding these effects could help improve atmospheric models, satellite-navigation corrections, and launch-impact assessments. It may also help researchers distinguish natural ionospheric variations from disturbances associated with human activities.
The findings do not mean that NASA's SLS rocket is unsafe or that future launches should automatically be considered a threat to navigation systems. Instead, they highlight an environmental effect that deserves careful measurement and continued scientific investigation.
What Does This Mean for People in the United States?
The United States is home to major space-launch facilities, satellite-navigation infrastructure, aviation networks, and a growing commercial drone industry. Research into rocket-induced ionospheric disturbances is therefore relevant to scientists, engineers, policymakers, and technology companies.
For ordinary people, there is no reason to assume that a rocket launch has made GPS unusable. The reported findings are more relevant to understanding how temporary changes in the upper atmosphere can influence radio signals and precision positioning.
As launch activity increases, better monitoring may help identify when and where such disturbances occur and whether they require additional navigation corrections.
What Scientists Still Need to Investigate
The Artemis II-specific findings are an important development, but several questions remain. Researchers will need additional observations and independent analysis to better understand the exact structure, lifetime, and practical effects of these disturbances.
- How long did each of the two disturbances remain detectable?
- How did electron density change at different altitudes?
- How much positioning error occurred in different geographic regions?
- How did the two upper-stage engine burns contribute to the observed disturbance?
- Can similar effects be expected during future large rocket launches?
- What monitoring and correction methods would best protect precision navigation systems?
Further research will help determine whether the reported effects are unusual for a launch of this scale or part of a broader pattern associated with powerful rockets.
NASA SLS Rocket Upper Atmosphere Hole: Key Facts at a Glance
| Topic | Key information |
|---|---|
| Rocket | NASA Space Launch System (SLS) |
| Mission | Artemis II |
| Launch date | April 1, 2026 |
| Atmospheric region | Earth's ionosphere |
| Reported disturbances | Two ionospheric holes |
| Reported horizontal extent | Approximately 3,100 miles (5,000 km) each |
| Upper-stage burn altitude | Approximately 115 miles (185 km) |
| Potential effect | Temporary changes in GPS positioning accuracy |
| Physical hole in the atmosphere? | No. It is a region of reduced electron density. |
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Frequently Asked Questions (FAQ)
Did NASA's SLS rocket really create a hole in Earth's atmosphere?
Researchers reported two large ionospheric holes associated with the Artemis II SLS launch. These are regions of reduced free-electron density, not literal openings in the atmosphere.
When did the NASA SLS rocket create the atmospheric holes?
The reported disturbances were associated with the Artemis II launch on April 1, 2026. One was linked to the core stage and another to later upper-stage engine burns.
How big were the ionospheric holes created by the SLS rocket?
The reported horizontal extent of each disturbance was approximately 3,100 miles, or 5,000 kilometers. This measurement does not describe a physical opening in the atmosphere.
Can an ionospheric hole affect GPS signals?
Yes. Changes in ionospheric electron density can affect satellite radio signals and introduce positioning errors. The size of any error depends on the signal path, receiver, location, and available correction systems.
Did the SLS rocket cause a nationwide GPS outage?
No nationwide GPS outage has been established by the reported findings. The research discusses potential positioning errors, not a confirmed nationwide loss of GPS service.
What is an ionospheric hole?
An ionospheric hole is an area in the ionosphere where free-electron density becomes lower than in the surrounding region. Rocket exhaust can trigger chemical reactions that contribute to this reduction.
Why does rocket exhaust affect the ionosphere?
Rocket exhaust contains substances such as water vapor and hydrogen-containing compounds. These can react with oxygen ions in the upper atmosphere, changing the local concentration of free electrons.
Can these disturbances affect self-driving cars?
They could potentially affect high-precision satellite positioning. However, autonomous vehicles often use multiple sensors and correction technologies, so an ionospheric disturbance does not automatically mean that a vehicle will lose navigation capability.
Can drones be affected by ionospheric disturbances?
Drones that depend heavily on satellite positioning may experience reduced accuracy under certain conditions. The practical impact depends on their navigation equipment and correction systems.
How long does an ionospheric hole last?
Its lifetime varies with altitude, atmospheric chemistry, sunlight, and charged-particle movement. Earlier observations show that rocket-related disturbances can evolve and recover over periods ranging from relatively short intervals to several hours. The exact lifetime of the Artemis II features should be based on mission-specific measurements.
Is an ionospheric hole the same as an ozone hole?
No. An ionospheric hole is a region of reduced free-electron density in the ionosphere. An ozone hole refers to a reduction in ozone concentration in the stratosphere. They are different atmospheric phenomena.
Is this the first time a rocket has created an ionospheric hole?
No. Scientists have studied rocket-induced ionospheric disturbances for years. Earlier research has documented similar effects following other rocket launches.
Does this mean future NASA rocket launches are dangerous?
Not by itself. The findings identify an atmospheric effect that deserves further study. They do not establish that SLS launches are unsafe or that future missions will cause widespread navigation problems.
What was the purpose of the Artemis II mission?
Artemis II was NASA's first crewed Artemis mission. It sent four astronauts aboard the Orion spacecraft on a journey around the Moon and back to Earth, testing systems needed for future lunar missions.
Final Thoughts
The reported discovery of two large ionospheric disturbances following NASA's Artemis II launch highlights an often-overlooked side effect of powerful rocket launches. A rocket can influence not only the atmosphere along its flight path but also the distribution of charged particles across a much larger region.
The possible connection with GPS positioning makes the findings especially relevant as satellite navigation becomes increasingly important in transportation, aviation, drones, and precision technology.
Still, the distinction between a potential positioning error and a confirmed widespread GPS disruption is essential. The Artemis II-specific analysis should be treated with appropriate scientific caution while researchers continue to investigate the scale and practical consequences of rocket-induced ionospheric holes.
Sources and Further Reading
-
NASA – Artemis II Mission
Official mission information, launch details, crew, and mission timeline. -
Space.com – Reporting on the Artemis II ionospheric disturbances
November 5, 2026 reporting on the SLS launch and the reported atmospheric effects. -
Journal of Geophysical Research: Space Physics – Vertical Structural Evolution of Ionospheric Holes Triggered by Rocket Launches Observed by the Sanya Incoherent Scatter Radar
Peer-reviewed research published in 2024 on rocket-induced ionospheric holes. -
NOAA – The Ionosphere
Background information about the ionosphere and space weather. -
NASA Science – Earth
NASA educational resources about Earth's atmosphere and environment.
Editorial note: The Artemis II-specific ionospheric findings described in this article are based on reporting about preliminary research. They should not be confused with the separate, peer-reviewed 2024 study of earlier rocket launches. Measurements and conclusions may be refined as additional research becomes available.
