Science

Israeli scientists’ attempt at the first private moon landing failed because of a glitch that caused a high-speed crash into the lunar surface

beresheet moon lander robot mission last photo israeli flag april 11 2019 spaceil
One of the last photos transmitted by Beresheet, the first private mission to attempt a moon landing. The spacecraft was designed and built by the Israeli nonprofit SpaceIL. SpaceIL/IAI via YouTube
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In February, SpaceX launched Israeli nonprofit SpaceIL's 1,300-pound robot, known as Beresheet, into space. But the world's first private moon mission ended in failure on April 11 when the dishwasher-sized robot smacked down into the lunar surface.

Beresheet — a biblical reference that means "in the beginning" — transmitted one final photo from about 14 miles above the lunar surface, shown above, before its failure.

The live broadcast of the event reported that Beresheet's main engine failed during its descent toward the moon. By the time mission controllers rebooted the spacecraft to try and restart the engine, it was too late.

Read More: Israel's first mission to the moon fails at the last minute, crashes into the lunar surface

Multiple press releases from SpaceIL confirmed those reports, stating that a command entered into the spacecraft's computer led to a technical glitch in one of Beresheet's components. The glitch caused the spacecraft's main engine to malfunction.

An ill-timed technical glitch prevented Beresheet from slowing down during its descent

Preliminary data collected by SpaceIL and Israel Aerospace Industries (IAI)'s engineering teams suggested that a computer command triggered a chain of events that briefly crippled the spacecraft's main engine. "Without the main engine working properly, it was impossible to stop Beresheet's velocity," the press released stated.

While the robot was able to overcome the malfunction by restarting the engine, by the time all systems were back online, Beresheet's velocity was too high for it to slow down sufficiently before impacting the moon.

The first technical issue occurred a little less than 9 miles above the moon. When SpaceIL and IAI teams finally lost contact with the spacecraft 492 feet from the lunar surface, Beresheet was still vertically descending at speeds upwards of 310 miles per hour on its collision course with the ground.

beresheet israeli moon lander robot payload close up spaceil
The "Beresheet" lunar robot designed and built by SpaceIL.  SpaceIL

The Israeli engineering teams will continue running tests to get more details about what went wrong.

Had the mission — backed by about $100 million in private funding — been successful, it would have made Israel the fourth nation ever to have a spacecraft survive a lunar-landing attempt.

Israeli Prime Minister Benjamin Netanyahu, who was present at the launch following his re-election, commented on the failure from the mission's control center in Yehud, Israel.

"If at first you don't succeed, try again," Netanyahu said.

Beresheet is getting a new lease on live

On April 13, just two days after their craft's fateful crash, Israeli nonprofit Space IL announced plans to build and launch a second spacecraft called Beresheet 2.

Company chairman Morris Kahn said he plans to form a new group of donors to support Beresheet 2, and has appointed a new team to work on, starting immediately. 

Kahn echoed the Israeli prime minster's April 11th sentiments.

"This is part of my message to the younger generation: Even if you do not succeed, you get up again and try," Kahn said in a press release.

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Dave Mosher reported news and features stories about science and technology for Insider, with human and robotic spaceflight as the primary focus of his multimedia storytelling. Mosher joined Insider in April 2015 as a deputy editor to help launch Tech Insider and manage its science desk. He left the company in February 2021. Prior to being an Insider, Mosher directed Popular Science's website, was a Wired contributor, and worked for or with Scientific American, Popular Mechanics, Discover, Space.com, National Geographic News, Discovery Channel, Nature, Science, and other media outlets.
Aylin Woodward was formerly a senior science reporter at Insider, where she covered climate change, earth science, anthropology and human evolution, and space.  She also covered the COVID-19 pandemic, with a focus on coronavirus variants, genetic sequencing, virus origins, and long-term immunity.   Before joining Insider, her work appeared regularly in New Scientist and the San Jose Mercury News, with bylines in Scientific American, Science, and BuzzFeed News. She is a proud alumna of the UC Santa Cruz Science Communication program, and graduated in 2015 from Dartmouth College with degrees in biological anthropology and government. Aylin speaks Turkish, French, and Spanish. When not frantically meeting deadlines or interviewing sources, she can be found on the nearest roller derby track, or surfing the nearest beach. Additional Expertise Aylin also wrote about natural disasters, mass extinctions, and weird animal phenomena. She is well versed in archaeology, dinosaurs, and enjoys penning the occasional Hollywood science fiction debunk.  Her reporting also extended to the realm of running shoe technology, with a focus on the role of controversial Nike Vaporfly shoes in major marathon wins and milestones. She uncovered a trend among non-Nike sponsored runners covertly using Vaporflys.  Popular articles Anthony Fauci reveals which activities he will and won't do now that he's vaccinated — and indoor restaurants are still a no Decades ago, 9 Russian hikers mysteriously fled their tent and froze to death. A new study sheds light on the cold case. Earth tipped over on its side 84 million years ago and then righted itself, new study finds Mysterious brain injuries have plagued over 130 US spies and diplomats. Were they attacked with a microwave weapon? Nike's controversial Vaporfly shoes make runners faster — so runners sponsored by other brands are blacking them out to wear in secret