Defunct part of SpaceX Falcon 9 rocket will slam into the moon

Accessibility links Skip to main content Keyboard shortcuts for audio player Open Navigation Menu --> Newsletters NPR Shop Get NPR+ Close Navigation Menu Home News Expand/collapse submenu for News National World Politics Business Health Science Climate Race Culture Expand/collapse submenu for Culture Books Movies Television Pop Culture Food Art & Design Performing Arts Life Kit Gaming Music Expand/collapse submenu for Music Tiny Desk New Music Friday All Songs Considered Music Features Live Sessions Podcasts & Shows Expand/collapse submenu for Podcasts & Shows Daily Morning Edition Weekend Edition Saturday Weekend Edition Sunday All Things Considered Up First Here & Now NPR Politics Podcast Featured Wait Wait...Don't Tell Me! Fresh Air Wild Card with Rachel Martin It's Been a Minute Embedded Get NPR+ More Podcasts & Shows Search Newsletters NPR Shop Get NPR+ Tiny Desk New Music Friday All Songs Considered Music Features Live Sessions About NPR Diversity Support Careers Press Ethics Defunct part of SpaceX Falcon 9 rocket will slam into the moon A defunct part of a Falcon 9 rocket could slam into the moon at more than 5,000 miles per hour, according to scientists. Space Defunct part of SpaceX Falcon 9 rocket will slam into the moon August 2, 20267:38 PM ET By Chandelis Duster A SpaceX Falcon 9 rocket lifts off from pad 39A with a payload of a pair of lunar landers at the Kennedy Space Center in Cape Canaveral, Fla., Wednesday, Jan. 15, 2025. John Raoux/AP hide caption A piece of a SpaceX Falcon 9 rocket is expected to slam into the moon on Wednesday, according to scientists. The piece is expected to hit the moon around 2:35 a.m. ET at more than 5,000 miles per hour, according to analysis by Bill Gray, who develops software that tracks objects in space. It is part of the rocket's upper portion and about the size of a five-story building. It was part of the Falcon 9 rocket that carried two lunar landers and scientific instruments to the moon in January 2025. Short Wave Want to spend a year living in NASA's Mars simulation? The piece is expected to hit a sunlit side of the moon facing Earth, which will be partially illuminated, in the northwestern portion near the Einstein Crater, according to Gray. The impact could leave a crater at least 17 meters in diameter, he said. SpaceX did not intend for the defunct piece to hit the moon, according to the Associated Press. NPR reached out to SpaceX for comment but has not received a response. Brent Garry, a project scientist for the Lunar Reconnaissance Orbiter (LRO) at NASA Goddard Space Flight Center, said the orbiter will pass over the region before and after the impact to get a sense of any changes to the surface. "After the impact we might have a little bit more knowledge of where it is. We can do some additional targeting about a week after the impact and get some targeting over where the site is," Garry said in June during a discussion about the upcoming impact held by NASA's Solar System Exploration Research Virtual Institute (SSERVI). The impact may not be visible; even a plume of dust may be difficult for professional telescopes to pick up, according to some researchers. "Rocks ejected by the impact may form a "plume" that will be visible against the dark background once they're off the moon," Gray wrote on his website. "As with much in science, the answer is "we don't know; let's find out"....Maybe we'll see rocks ejected from the crater." But some researchers also say that while viewing may be challenging, it could be visible with sensitive telescopes. It also presents an opportunity for scientists to get a glimpse of impacts to the moon. "Given these are so rare, I would encourage people who are interested and aware of the risks to take a look," according to Ben Fernando, postdoctoral fellow and researcher at Los Alamos National Laboratory, who was part of the discussion.