Essential Insights
- NASA is testing lunar lander plume interactions in a large vacuum chamber.
- Tests simulate dust and rock disturbances during spacecraft landings on the Moon.
- Different propulsion systems are being evaluated for safety and accuracy.
- Results will aid future Moon landings and potentially Mars missions safety.
NASA Begins Moon Mission Plume-Surface Interaction Tests
Editor’s Note: This story, originally published in December, was revised Aug. 26, 2026, with an update on a new phase of testing, including video from a recent test run and new images.
NASA is taking a big step toward safer lunar missions by starting a series of plume-surface interaction tests. These tests are essential for understanding how rocket engine plumes interact with the moon’s surface, which includes dust, soil, and rocks. The tests take place inside a massive 60-foot spherical vacuum chamber at NASA’s Langley Research Center in Hampton, Virginia.
As NASA prepares to send astronauts back to the Moon starting with Artemis IV in 2028 and aims to establish a lunar base, this research will provide valuable data. It helps scientists develop better models to predict what happens during a lunar landing. The data also influences the design of future space hardware to ensure safety and mission success.
Complex Testing to Mimic Lunar Conditions
The primary goal of this campaign is to simulate how rocket plumes disturb the lunar surface. Ashley Korzun, the testing lead at NASA Langley, says this is the most complex test of its kind ever done in a vacuum chamber. “If I’m in a spacecraft and I’m landing on the Moon, some of the dust and soil will hit my lander. Some will go outward, potentially damaging equipment or hindering operations,” she explains. Understanding the physics behind this process is critical for protecting crew members and hardware.
NASA’s team is testing two types of propulsion systems inside the chamber. First, they use an ethane plume simulation system designed by NASA’s Stennis Space Center near Mississippi and built at Purdue University. This system produces about 100 pounds of thrust—similar to supporting a 100-pound person’s weight. It heats up but does not burn during operation.
In recent tests, the ethane system was fired into a container filled with simulated lunar soil called Black Point-1. This soil resembles real lunar regolith, with jagged, cohesive qualities. The scientists use various instruments, including stereo cameras from the Firefly Blue Ghost lunar lander mission, to collect images and data. The tests last around six seconds each and measure things like crater shape, ejecta height, how fast soil particles are blasted out, and the distribution of debris.
Later in the year, a second set of tests will feature a small hybrid rocket motor developed at Utah State University. It produces roughly 35 pounds of thrust and simulates a real rocket engine firing with solid fuel and gaseous oxygen. Researchers plan to test this system at different heights to see how it interacts with the surface under various conditions.
Korzun emphasizes the flexibility of these tests. “We can adjust the setups to simulate different landing scenarios for lunar or even Mars missions,” she states. The chamber can switch from lunar to Martian conditions by changing the soil simulant and adjusting pressure to mimic Mars’ thinner atmosphere. This modular approach allows NASA to prepare for future missions beyond the Moon.
Advancing Lunar and Martian Exploration
The data gathered from these tests will be critical for future crewed missions. Daniel Stubbs, an engineer at NASA Marshall Space Flight Center, highlights their importance. “This is one of the most detailed and flight-relevant plume-surface interaction tests NASA has ever done,” he says. The information will help shape safer landing procedures for both lunar and Martian surfaces, reducing risks to astronauts and hardware.
These efforts are part of NASA’s broader Artemis program. The goal is to explore the Moon, conduct scientific research, and pave the way for enduring human presence. The knowledge gained also supports plans for future missions to Mars, making space travel safer and more reliable.
For updates on Artemis and NASA’s lunar exploration efforts, visit NASA’s Artemis webpage.
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