Danuri Captures First Images of SpaceX Rocket Impact on Moon Before and After Collision... Joint Research With NASA

High-Resolution Imaging Conducted Eight Times from 30 Minutes Before to Shortly After Impact
Precise Analysis of Lunar Surface Changes... Demonstrating Korea's Lunar Observation Capabilities

Korea's first lunar orbiter, Danuri, has successfully captured a series of images showing the area surrounding the impact site of a man-made object on the lunar surface before and after the collision. Securing both pre-impact and post-impact images is considered to be a significant resource, as it allows for the precise analysis of changes on the lunar surface.

According to the Korea Aerospace Administration (KASA) on August 6, Danuri (KPLO) photographed the upper stage of a SpaceX Falcon 9 rocket near the Einstein Crater on the Moon, covering both before and after its impact, which occurred on August 5 at 3:34 p.m. KST.

SpaceX Falcon 9 Collision Site. Provided by Korea Aerospace Administration (KASA)

Danuri began observations at 3:01 p.m., about 30 minutes prior to the collision, and continued post-impact imaging, completing a total of eight observations. All imaging was completed by around 7 a.m. on August 6.

By controlling its orbit, Danuri passed directly above the impact site and used its high-resolution camera (LUTI) to photograph the lunar surface immediately before and after the collision. The wide-angle polarimetric camera (PolCam) also observed the region simultaneously, capturing changes in the polarization characteristics of the surface. At the time, the distance between Danuri and the impact site was about 340 to 350 km.

The Korea Aerospace Administration described this mission as a highly complex task, equivalent to flying at a speed of 1.5 km per second at an altitude of 150 km above Seoul to photograph a collision that occurred in Busan.

Direct Before-and-After Comparison Enables New Data for Lunar Surface Studies

The observations confirmed terrain changes around the impact site and traces of ejecta scattered by the collision. Previously, on July 9, Danuri had pre-imaged the expected impact area, providing reference imagery.

Conventionally, objects that have collided with the Moon were observed long after the event to check for changes, but for this mission both pre- and post-collision images were secured, allowing changes caused by the impact to be directly compared and analyzed.

The materials obtained will be used to analyze the scale and form of the impact crater, the distribution of ejecta, as well as surface reflectance and changes in polarization characteristics.

The Lunar Reconnaissance Orbiter (LRO) of the National Aeronautics and Space Administration (NASA) is also scheduled to conduct follow-up observations in the region. The data secured by Danuri will contribute to NASA's observation planning through international cooperation. In the future, research results from both sides are expected to serve as international joint research material, enhancing the accuracy of lunar surface analysis using artificial colliders and the interpretation of natural meteorite impacts.

Tae seog Oh, Administrator of the Korea Aerospace Administration, stated, "The fact that Danuri captured images of a man-made object impacting the Moon from orbit is an important achievement demonstrating Korea's capability in orbit control and mission operations, as well as our overall lunar exploration capacity. We expect this observation data will lay the foundation for expanding lunar research and future space exploration strategies."

This content was produced with the assistance of AI translation services.