An abandoned SpaceX Falcon 9 rocket stage is expected to slam into the Moon in the early hours of August 5, 2026, according to Asiatimes. The upper stage was launched in January 2025 to send two commercial lunar landers—Firefly’s Blue Ghost-1 and ispace’s Hakuto-R Resilience—toward Earth’s nearest neighbor, as reported by IFLScience.
SpaceX Falcon 9 Rocket Stage Set for Lunar Collision
With its work completed, the rocket lacked the necessary fuel to return to Earth or move into deep space, leaving it in an unstable orbit until gravity set it on a collision course with the lunar surface. The rocket stage measures nearly 40 feet long, 13 feet wide, and weighs 4,000 kg, and it is projected to strike the Moon at around 8,700 kilometers per hour, according to Asiatimes and wionews.com.
Scientific Opportunity and Expected Impact Details
Astronomers view the impending crash as a rare scientific opportunity to study an artificial impact on the Moon. Gregory Radisic, a Fellow at the Centre for Space, Cyberspace and Data Law at Bond University, explained the orbital mechanics in a piece for The Conversation, noted by IFLScience. Astronomer Bill Gray tracked the object using Project Pluto software and was first to reveal impact details, according to wionews.com.
The collision is expected to generate a kinetic energy of 11.8 gigajoules and a momentum of 9.7 meganewtons—equivalent to about 2.8 metric tons of TNT—and will excavate a crater roughly 20 to 30 meters (65 to 100 feet) across, according to IFLScience and wionews.com. The impact will eject a cloud of lunar dust, known as regolith, several kilometers into the air, while a new non-peer-reviewed paper notes that the continuous ejecta blanket will span an area around 70 meters in diameter.
The collision is expected to occur near the isolated Einstein Crater on the Moon’s western edge, keeping it safely away from many significant lunar heritage sites. The impact may be visible from Earth and space-based telescopes, with visibility aided for observers in South America and low-middle North America where darkness assists viewing.
Looming Regulatory Challenges and Space Law
While the physical crash poses no danger, experts emphasize that it highlights a broader regulatory vacuum regarding activities that permanently reshape the lunar environment. Space agencies, private companies, and researchers are increasingly operating on the Moon simultaneously, raising concerns about potential debris hazards, dust interference with nuclear-powered bases or scientific equipment, and threats to cultural heritage sites like the Apollo lander and early human footprints.
Unlike Earth, the Moon lacks domestic heritage laws, environmental regulations, or equivalents to UNESCO World Heritage protection. The primary governing framework remains the 1967 Outer Space Treaty, which boasts 138 state signatories and establishes that no country can claim sovereignty over the lunar surface, as detailed by Nautilus | Science and independent.co.uk. However, the treaty provides little practical guidance on lunar governance or environmental management. Because individual countries are responsible for supervising their own space companies, the American government is theoretically on the hook for SpaceX’s mistakes, which could expose companies to financial liabilities and potential international diplomatic incidents. Working groups within institutions like the United Nations Office for Outer Space Affairs (UNOOSA) continue to examine how nations can better coordinate activities and regulate resources on and around the Moon.
