I worked on (a very small part of) the ExoMars rover (now called the Rosalind Franklin[0]).
It was supposed to launch in 2018, then was pushed to the early 2020s on a Russian rocket. For obvious reasons, it got pushed again, now launching in 2028.
The state of the world isn't great for space exploration, but I'm hopeful this mission will be revived at some point in the future.
This mission is representative of what JPL has become. Leadership there increased the cost of the program to $11B and would not bring the samples back until 2040, they also designed the mission around legacy rockets like Ariane 64 instead of working to lower costs and increase capacity by working with industry and designing around Starship or New Glenn. The moon missions brought back 842 pounds of rocks and MSL would bring back 1.1 pounds. It’s directionally better to wait for manned missions to Mars so we can bring back tons of rocks or even do the research on Mars itself. It seems like the JPL mission is maximized to provide jobs to researchers and maximized for mission complexity rather than just buying rocks from a contractor with quoted price and lead time.
I’d be interested in working there to help accelerate the program but I’m not if I would get support internally.
This article only obliquely mentions in the last paragraphs, but there's a parallel Chinese program that recently brought back samples from the moon, and will attempt Mars sample return, launching in 2028,
Total starship mission including launches is 15 billion to date , and it’s on the verge of entering limited commercial service . Maybe without re use but as a much cheaper super heavy rocket , like 10x cheaper without re use already .
It make sense to a certain extent to focus on a capability researches vs largely throw away mission to deliver a few rocks for 20 billions.
I never really understood why you'd have Perseverance drill the cores and then just leave them on the ground for an underdefined future mission to retrieve.
This article reads like self-pity propaganda from the institutions and scientists who benefited from the old NASA funding model and now see that model being dismantled.
The underlying program was in trouble. NASA had already concluded before Isaacman took over that the existing Mars Sample Return architecture had become a roughly $8–11 billion project with samples potentially not reaching Earth until around 2040.
So yes: NASA killed the bloated $11B / 2040 version of Mars Sample Return.
Isaacman is pushing NASA’s Mars program toward cheaper, faster, modular missions, greater use of commercial spacecraft and launch providers, and infrastructure that can support both science and eventual human exploration.
That makes the “NASA is abandoning Mars science” framing fake news. NASA is abandoning a specific, extremely expensive architecture.
Isaacman has explicitly left open the possibility of retrieving Perseverance’s samples through a different approach.
The real question is to what extent the new model will actually deliver the samples faster and for dramatically less money.
I'm personally sad to see samples from Jezero crater with potential biosignatures [1] won't find their way back to Earth for the foreseeable future. I was _really_ looking forward to learning more about what we found.
Maybe in some ideal world the US and China would work together to pass those samples on to a Chinese MSR, but it seems borderline impossible.
In 2020 Musk claimed to be "highly confident" of landing humans on Mars by 2026. So they should be there any moment, can pick them up and bring them back.
More seriously some Starship related stuff may work one day?
The Japanese 'Martian Moons exploration' mission is launching to Phobos next month and doing a sample return; how hard would a martian to phobos sample moving mission be that could then be collected off Phobos sometime?
I think the original plan was to land another rover, which would drive to each sample. I hope future plans weight the use of helicopters for retrieval after Ingenuity's success. It looks like the sample capsules weigh less than 3oz.
For better or worse it won’t be long until we get private exploration for minerals and water on the Moon and nearby planets, at a relatively decent scale (in comparative terms)
I hope that one of these days my great grandchildren will be able to go to the Smithsonian and see the beat up and dusty Curiosity rover live and in the proverbial flesh.
My brother in law (JPL) was telling me about this earlier in August. Big letdown but he assured me that they'll come back to earth some day ... just gonna sit up there a long time.
Right. It's much better to spend tax dollars on useless wars and furthering the Zionist and imperialist causes, than spending said tax dollars on doing actual, real, valuable science. Which maybe, just maybe, answers some fundamental questions which we have sought the answer to for eons beyond remembrance.
So bloody frustrating and completely unsurprising.
NASA, with the best leadership it has ever had, is cutting absurdly wasteful, over-budget programs that will never launch, to focus on actually getting things done.
And noone has yet mentioned SpaceXman ?
It's pocket money to him, would be a great demonstration of philanthropy as well as "private research ability".
The USA can't afford to waste money shipping a bunch of rocks halfway across the Solar system just so some woke geeks can speculate if Mars in the past could have supported transgender athletes.
It would jeopardize important national security projects like the White House Ballroom, the Triumphal Arch, the Garden of Heroes and National Golf Course, and of course the Donald J. Trump Center for The Performing Arts (formerly The Memorial To That Loser That Got Assassinated.)
I'm surprised nobody has mentioned this but one reason not to do this mission is that we have ~400 Martian samples from meteors found on Earth [1]. The fact that there's even 1 is kind of amazing to me. And this has been confirmed by multiple methods including analyzing the air bubbles trapped in the rock matching Mars's atmosphere.
Flying to Mars and then flying back is incredibly complicated and much more expensive. Rather than sending an exploratory rover or a satellite, you have to basically send an entire launch vehicle when we've never launched anything into orbit from Mars before. And it has to operate essentially autonomously (for the launch).
Even missions to get samples from comets and asteroids are far less complicated because you're not dropping into a gravity well with just enough atmosphere to cover all your stuff in dust but not enough for atmospheric braking. Mars has the exact wrong amount of atmosphere.
Obviously samples returned from Mars would be better but it diminishes the value when we already have samples here. So the huge price tag and incredible engineering complexity becomes harder to justify.
I was holding my breath for Nancy Grace Roman Space Telescope which amazingly wasn't cancelled but they did cancel its successor, the Habitable Worlds Observatory Space Telescope which would be able to spot earth-sized exo-planets
even though Congress already funded it, because somehow the executive is allowed to illegally pocket veto Congress over and over again past two years
it's all Heritage Foundation and Russell Vought, he has no use for science and education
This is so disappointing. The closest thing we ever discovered to life on other planets and the US won't even put 0.5% of budget towards retrieving it.
Trump and his cronies will do a lot more damage. It is in my opinion de-facto a dictatorship here at work. Recent polls have a support base of ~33% only. That's not sustainable in a democracy. Why can he still cling to power?
Since the start the whole program was simply a scam, that is all there is to it, everyone involved knew it was a scam.
I can guarantee you that China will bring back samples before the US, simply because their program was built to bring back results, practically, while NASA's was meant to subsidize PHDs of people involved, while baiting people with "aliens!!!!1", there is no reason why the state should be funding the PHDs of people involved with niche/weird research rather than focus on what the vast majority want and support NASA for.
You can have obscure research as a side mission, not the core, while blatantly lying too.
NASA’s Mars Sample Return mission is dead
(science.org)395 points by Muhammad523 15 hours ago | 333 comments
Comments
It was supposed to launch in 2018, then was pushed to the early 2020s on a Russian rocket. For obvious reasons, it got pushed again, now launching in 2028.
The state of the world isn't great for space exploration, but I'm hopeful this mission will be revived at some point in the future.
[0]https://en.wikipedia.org/wiki/Rosalind_Franklin_(rover)
I’d be interested in working there to help accelerate the program but I’m not if I would get support internally.
https://en.wikipedia.org/wiki/Tianwen-3
> Engages in pointless wars
It make sense to a certain extent to focus on a capability researches vs largely throw away mission to deliver a few rocks for 20 billions.
The underlying program was in trouble. NASA had already concluded before Isaacman took over that the existing Mars Sample Return architecture had become a roughly $8–11 billion project with samples potentially not reaching Earth until around 2040.
So yes: NASA killed the bloated $11B / 2040 version of Mars Sample Return.
Isaacman is pushing NASA’s Mars program toward cheaper, faster, modular missions, greater use of commercial spacecraft and launch providers, and infrastructure that can support both science and eventual human exploration.
That makes the “NASA is abandoning Mars science” framing fake news. NASA is abandoning a specific, extremely expensive architecture.
Isaacman has explicitly left open the possibility of retrieving Perseverance’s samples through a different approach.
The real question is to what extent the new model will actually deliver the samples faster and for dramatically less money.
Maybe in some ideal world the US and China would work together to pass those samples on to a Chinese MSR, but it seems borderline impossible.
[1]: https://www.nature.com/articles/s41586-025-09413-0
More seriously some Starship related stuff may work one day?
Either deliver it under-budget or it should get cut. NASA has become more of a jobs program than a space program. Hopefully that changes.
2. Use some of it for good science even if you don't want to improve welfare and healthcare.
3. Profit and prosper!
* https://www.youtube.com/watch?v=zvCgC1yA7_w
So bloody frustrating and completely unsurprising.
Sounds great to me.
Do it !
It would jeopardize important national security projects like the White House Ballroom, the Triumphal Arch, the Garden of Heroes and National Golf Course, and of course the Donald J. Trump Center for The Performing Arts (formerly The Memorial To That Loser That Got Assassinated.)
Flying to Mars and then flying back is incredibly complicated and much more expensive. Rather than sending an exploratory rover or a satellite, you have to basically send an entire launch vehicle when we've never launched anything into orbit from Mars before. And it has to operate essentially autonomously (for the launch).
Even missions to get samples from comets and asteroids are far less complicated because you're not dropping into a gravity well with just enough atmosphere to cover all your stuff in dust but not enough for atmospheric braking. Mars has the exact wrong amount of atmosphere.
Obviously samples returned from Mars would be better but it diminishes the value when we already have samples here. So the huge price tag and incredible engineering complexity becomes harder to justify.
[1]: https://www.nhm.ac.uk/discover/martian-meteorites-rare-visit...
I was holding my breath for Nancy Grace Roman Space Telescope which amazingly wasn't cancelled but they did cancel its successor, the Habitable Worlds Observatory Space Telescope which would be able to spot earth-sized exo-planets
even though Congress already funded it, because somehow the executive is allowed to illegally pocket veto Congress over and over again past two years
it's all Heritage Foundation and Russell Vought, he has no use for science and education
I can guarantee you that China will bring back samples before the US, simply because their program was built to bring back results, practically, while NASA's was meant to subsidize PHDs of people involved, while baiting people with "aliens!!!!1", there is no reason why the state should be funding the PHDs of people involved with niche/weird research rather than focus on what the vast majority want and support NASA for.
You can have obscure research as a side mission, not the core, while blatantly lying too.
Mars has a little bit less gravity than Earth
How big would a rocket need to be even to send a small payload (let's think 20kg/45lb) even suborbitally so that it can be caught by another spaceship
Now check how big a rocket has to be to send all of that from Earth
You'd probably have to send this on Starship. And refuel it while on orbit