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The NASA/ESA Mars Sample Return mission has been canceled

89 pointsby 1h agoscience.org
35 comments
42m agoHN ↗

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.

38m agoHN ↗

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,

https://en.wikipedia.org/wiki/Tianwen-3

It's not that there will be no Mars sample retrieval for humanity; it's rather that NASA has (?) given up on being the one to do it first.

29m agoHN ↗

I think that the scientific community really doesn't care about who will bring the samples back, but simply wheter someone will do it and share them with the world

25m agoHN ↗

The NASA/ESA MSR was of substantially higher quality, mind you. The M2020 rover specifically picked up samples of high scientific value to be returned. The Chinese return mission will only return what it finds from its direct landing site.

15m agoHN ↗

It's not like they're going to do it only once though, and some is a lot more then zero.

22m agoHN ↗

it's rather that NASA has (?) given up on being the one to do it first

I think the Trump admin decided since it will not make them a profit, like other scientific research already canceled, it is not worth doing.

18m agoHN ↗

"Profit" is too generous a motive. It didn't service the Big Man's ego, so it's gone. That they can do some damage by killing it just makes it sweeter. Trump is Teemu Saruman.

37m agoHN ↗

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.

35m agoHN ↗

That would be a MASSIVE portion of the budget for a single discretionary item.

33m agoHN ↗

I guess I should clarify, I meant 0.5% to NASA in general. Right now it's 0.33%. In 2002 it was 0.72%.

29m agoHN ↗

We cannot cancel anything ever because each program is only 0.001% of the federal budget. To do so would be stingy.

15m agoHN ↗

Or we could look at the utterly stupid things, like maybe stop having a failed war in Iran, and just not pay for those? Thats a very big chunk of budget. As a bonus it would bring gas prices down, reduce future spending in VA and other combat veteran costs, and just possible help make the case for reducing the size and expense of our military (while still maintaining the 2 largest air forces in the world).

12m agoHN ↗

That'd be a strawman.

What makes you think the poster you responded to agrees with the Iran war expense? He simply commented on how difficult it is to cut anything from the Federal budget. He's right. Remember when all the lunatics were out keying Teslas a few short months ago?

14m agoHN ↗

And Europe is even worse, it's embarrassing.

33m agoHN ↗

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.

31m agoHN ↗

Because the powers that be would have deemed a real plan as too expensive.

18m agoHN ↗

would have deemed a real plan as too expensive

Who are these "powers that be"? And do they have an infinite credit card? Could they really just do whatever they want and for some reason they choose not to?

20m agoHN ↗

Perseverance, obivously, has onboard instruments to analize the samples before dumping them on the ground

6m agoHN ↗

An all-in-one solution would be far too heavy. Splitting the tasks up makes a lot of sense. Having all the equipment onboard to drill cores, quickly analyze them, decide if they're worth keeping, and then putting samples in containers is enough work for one rover.

* Storing all the samples onboard means a larger and heavier rover

* Mass budget squeeze means no more helicopter

* The return requires a ground launch from mars, so no more SkyCrane delivery system

31m agoHN ↗

My bet is that the new Trump-flavored NASA still wants to do this, but without the Europeans.

24m agoHN ↗

Knowing Jared Isaacman, he won't let MSR die without a fight. It wouldn't shock me to see NASA consider Rocket Lab's MSR proposal; they had submitted a pretty affordable proposal some time ago.

30m agoHN ↗

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.

[0]https://en.wikipedia.org/wiki/Rosalind_Franklin_(rover)

28m agoHN ↗

I'm curious to know on which part you worked on, could you tell us?

22m agoHN ↗

As an outsider who is very interested in space exploration I'm very flummoxed by the state of space exploration.

With the price of launches so low compared to only 20 years ago due to advancements in launch technology and the increased cadence of launches it seems like it should be easier to do these kinds of missions and that there should be more, cheaper missions that are willing to take risks because the per mission cost is so much lower.

Can you comment on why that doesn't seem to be happening? Why aren't we covering Mars in cheap rovers and satellites?

8m agoHN ↗

Probably has something to do with the recent anti-science movement that currently has our country and government in a chokehold.

8m agoHN ↗

We've had 8 launches in the past 3 years, with only 10 in the combined 17 years before.

25m agoHN ↗

That article is from January 6 2026. Not sure why it is being surfaced now.

13m agoHN ↗

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)

11m agoHN ↗

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.)

9m agoHN ↗

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.