3000+ Images Reveal What Really Happens When You Land on the Moon

NASA has shared footage of a lunar lander’s engine plumes visibly interacting with the Moon’s surface during descent, an extraordinary visual that sheds light on a rarely seen phenomenon. Captured during the Blue Ghost mission on March 2, the mission took place in the Mare Crisium region and was part of NASA’s Commercial Lunar Payload Services (CLPS) initiative, which partners with private companies to deliver instruments to the lunar surface. While plenty of missions have landed on the Moon before, none have documented this specific stage of descent in such detail.

Thousands of Images Reveal Plume Activity in the Final Moments

The camera system responsible for this breakthrough, called SCALPSS 1.1 (short for Stereo Cameras for Lunar-Plume Surface Studies), includes six cameras in total. Four of those are short-focal-length lenses, and during the Blue Ghost’s descent, they snapped more than 3,000 images at a rapid rate, 8 frames per second to be exact. The recording started at roughly 91 feet (28 meters) above the lunar surface, which may not sound that high, but it’s enough to catch some incredibly detailed activity.

According to NASA, the first signs of interaction between the lander’s thrusters and the Moon’s surface appeared around 49 feet (15 meters) in altitude. And from there, things got messy fast. The high-speed plume from the reaction control system churned up clouds of lunar dust, loose soil, and rocks, what scientists refer to as regolith. The dust masked the view for a brief moment, but as the lander touched down and the engines cut off, the haze cleared to reveal the freshly disturbed terrain underneath.

As Rob Maddock, SCALPSS project manager, explained in NASA’s announcement, the images are delivering precisely what the team hoped for.

“The 3000-plus images we captured appear to contain exactly the type of information we were hoping for in order to better understand plume-surface interaction and learn how to accurately model the phenomenon based on the number, size, thrust and configuration of the engines,” he said, noting that the data will help improve engine configuration and risk models for future missions.

What Artemis Can Learn on the Moon

SCALPSS 1.1 is a system that also includes two long-focal-length cameras that began capturing images before the thrusters even started kicking up material. These early shots serve as the “before” images in a detailed comparison with the dust-blasted surface post-landing.

The real value comes when all six cameras’ datasets are combined. The overlapping images will be used to create 3D digital elevation maps of the surface, using a technique called stereo photogrammetry. It’s a bit like building a 3D model from a stack of photographs, and it will help researchers see not only how the dust moved, but also what the surface looked like before and after the disturbance.

In America’s space agency’s word, the cameras are still running on the Moon. As lighting conditions change over the long lunar day, and eventually into lunar night, the team hopes to catch additional surface changes, particularly how dust behaves in response to temperature shifts and shadows.

Next-Level 3D Terrain Maps

With more landers heading to the Moon in the next few years, scientists need hard data to predict how landings will affect nearby equipment, structures, or even astronauts on the ground. Michelle Munk, SCALPSS principal investigator, said in the release that:

“The successful SCALPSS operation is a key step in gathering fundamental knowledge about landing and operating on the Moon, and this technology is already providing data that could inform future missions.”

The information will be especially useful as NASA ramps up crewed and uncrewed missions under Artemis, where landings in close proximity will become more common.