Danuri Captures Moon Before, After Falcon 9 Rocket Impact

South Korea’s Korea Aerospace Administration (KASA) released images on August 6 from its probe Danuri, showing the spot where a Falcon 9 rocket’s upper stage hit the Moon. The impact happened on August 5, 2026, at 6:34 GMT (15:34 Korean time), on the Moon’s far side near Einstein crater. The stage is estimated to have been traveling at about 8,690 kilometers per hour when it struck the surface.

What makes the material valuable isn’t the impact itself but the fact that the same terrain was photographed beforehand. Craters left by human spacecraft on the Moon have typically been found after the fact, by comparing older and newer images that nobody took with that purpose in mind. This time the area was photographed in advance, so the change can be attributed to a known object of known mass and speed.

Danuri took reference photos of that stretch of surface on July 9, 2026, a month before the crash. Its first image on the day of impact was taken at 15:01 Korean time, 33 minutes before the collision, and the probe went on to fly over the impact site eight times in total by changing its orbit. The last image in that series was captured around 7 a.m. Thursday.

How the Images Were Captured

At the time of observation, Danuri was flying 340 to 350 kilometers above the impact site. Two cameras were in use: the Lunar Terrain Imager, a high resolution camera that captures the surface at about five meters per pixel, and a wide angle polarimetric camera that measures changes in surface reflectivity and polarization. Those measurements help estimate the size and density of particles and how material thrown up by the impact is distributed.

KASA compared the difficulty of the task to an everyday scene in its statement:

It’s like photographing a crash in Busan while traveling 150 kilometers above Seoul at a speed of 1.5 kilometers per second.

The comparison is about the precision of the guidance involved: the probe had to be positioned exactly above a specific point at a specific minute. Korea’s Institute for Space Research (KARI) wrote in a post on X that “this observation confirmed terrain changes around the impact site and traces of scattered material.”

Where the Falcon 9 Upper Stage Came From

That stage of the rocket dates back to a launch on January 15, 2025, when a Falcon 9 carried two private landers into space: Blue Ghost, built by Firefly Aerospace, and Resilience, built by Japan’s ispace. Blue Ghost landed successfully on March 2, 2025, while Resilience crashed during its own landing attempt.

Danuri itself reached lunar orbit on the same type of rocket, launched from Cape Canaveral in August 2022. The probe carries six instruments, including NASA’s ShadowCam, used to search for water ice in the Moon’s permanently shadowed regions, while the remaining five were built by Korean universities and research institutes.

KASA Administrator Oh Tae-seok said in the statement:

This achievement will provide an important foundation for expanding our country’s Moon exploration and for our future space exploration strategy.

What the Images Don’t Show Yet

Estimates put the new crater at up to 27 meters wide, but the exact dimensions are still being calculated from the images and that figure could change. Analysis of the crater’s shape, the distribution of ejected material and changes in surface reflectivity is still to come, so the released photos show for now that the terrain changed, not exactly how much material moved or how deep it went.

The images also say nothing about how lunar soil behaves elsewhere. This is one impact at one point on the far side, and conclusions about the properties of the surface only carry weight once compared with similar cases. The next step is observation of the same site by NASA’s Lunar Reconnaissance Orbiter, which was on the opposite side of the Moon at the time of the crash and couldn’t capture it.