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NASA cancels its VIPER payload on Astrobotic’s Griffin lunar lander

VIPER's planned route on the Moon
VIPER’s now canceled planned route at the Moon’s south pole

Late yesterday NASA announced it was canceling the VIPER rover that was the primary payload on Astrobotic’s Griffin lunar lander, scheduled for launch in the fall of 2025.

NASA stated cost increases, delays to the launch date, and the risks of future cost growth as the reasons to stand down on the mission. The rover was originally planned to launch in late 2023, but in 2022, NASA requested a launch delay to late 2024 to provide more time for preflight testing of the Astrobotic lander. Since that time, additional schedule and supply chain delays pushed VIPER’s readiness date to September 2025, and independently its CLPS (Commercial Lunar Payload Services) launch aboard Astrobotic’s Griffin lander also has been delayed to a similar time. Continuation of VIPER would result in an increased cost that threatens cancellation or disruption to other CLPS missions. NASA has notified Congress of the agency’s intent.

Knowing a bit of history is important to understand this decision. In the first half of the 2010s VIPER was called Resource Prospector, and was intended as an entirely NASA-built lunar lander and rover mission with a budget of about billion dollars. In 2018 however the Trump administration cancelled it as part of its decision to shift from missions designed, built, and owned by NASA to making NASA simply a customer buying products from private sector. Rather than spend a billion on one lunar lander/rover mission, NASA would use that money to buy multiple lunar landers from private companies, and put its instruments on those.

NASA then decided to repurpose the rover portion of Resource Prospector, turning it into VIPER to launch on Astrobotic’s Griffin lander. However, that project still carried with it all the problems that curse all government-designed, government-built, and government-owned projects. It had no fixed price contract but instead had the typical government unlimited checking account, and thus its costs kept rising with repeated delays in construction.

When then-NASA Administrator Jim Bridenstine revealed the project at the 2019 International Astronautical Congress, the estimated cost was $250 million. By the time NASA was ready to make a cost commitment to Congress, that grew to $433.5 million with landing in 2023. That landing date slipped to 2024 with a cost of $505.4 million. Now it has slipped again to 2025 and with a cost of $609.6 million, more than 30 percent above the commitment. That triggered an automatic cancellation review, Kearns said, which took place last month.

Some of the cause of the 2023 delay was because Astrobotic’s Griffin lander wasn’t ready either. Now however it appears VIPER still won’t be ready for the 2025 launch, even though the lander will be ready.

NASA has therefore decided to stop throwing good money after bad, and kill the rover. It however has not killed its funding for Astrobotic’s Griffin, and the mission will go forward, with the company offering its now open payload space to others. It also may use this space to fly a demonstration mission of its own proposed LunarGrid solar power system.

Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

 

The print edition can be purchased at Amazon. from any other book seller, or direct from my ebook publisher, ebookit. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.


The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
 

"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News

One comment

  • Richard M

    It’s very sad to see this, because the main point of Artemis going to the South Pole in the first place is because there’s water ice there – water we can use to live and work there or even create propellant in a shallow gravity well for deep space missions. VIPER was better positioned than any other mission on the books to tell us a lot about that water.

    I also don’t doubt that it was not quite as close to the finish line as is being made out; that it was gonna cost more than another $84 million to get there. There’s a lot they are not telling us, and I think that goes beyond any struggles Ames was having with this mission, or why Ames was given it in the first place.

    Dwayne Day, posting at NSF forums, had a worthwhile observation last night:

    You have to consider the bigger picture: NASA’s science budget has been cut, and they no longer have the ability to shave a little off the edges of a bunch of programs, they have to cut entire programs. I’ve been hearing this in briefings on Earth science, planetary, and astrophysics for a few months now.

    They have to start canceling things. And when you have to cancel things, the first thing senior leadership asks is “What are the programs that are in biggest trouble and are going to cost us the most to get back on track?” Apparently VIPER came up to the top of the list at planetary.

    A number of months ago I heard a good discussion about the medium-term viability of CLPS. It’s not good.

    I still think CLPS was a very good idea in principle: a way to leverage the commercial sector to handle the more mundane task of getting stuff where NASA needs it to go, and doing it more cheaply and reliably. But in execution, it was clearly underfunded and problematically structured. Add on top of that a legacy lunar science mission that the science mission directorate had already killed off once and been forced to take back on – a mission it really didn’t want – and yesterday’s news is not entirely surprising.

    The result is what Kenneth Chang leads off his story with this morning: “NASA will spend about $800 million to not send a robotic rover to the moon.”

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