Science, culture, complexity

Tag: Jet Propulsion Laboratory

  • Frugality is a toxic chalice

    From ‘Earth Imaging Satellite NISAR Exposes NASA’s Weaknesses, ISRO’s Strengths’, NDTV, July 26, 2025:

    At the end of the day, the US scientists have swallowed their pride and are sheepishly going to watch the launch of a satellite where they have invested nearly $1.15 billion. It is this exorbitant cost by NASA that should also be a reason for Americans to squirm and be uncomfortable.

    When ISRO’s Mars Orbiter Mission entered into orbit around Mars, The New York Times carried a cartoon showing a dhoti-clad man holding a cow in one hand and knocking with the other asking to be let into a room where he could sit with the world’s other major space powers. The paragraph above as well as many others in the NDTV article are simply the other side of the same coin: one cast ISRO as a frugal simpleton and the other takes exorbitant pride in ISRO’s frugality.

    If it isn’t clear by now, however, ISRO’s lower costs stem from the fact that it’s simply underfunded and its staff underpaid. ISRO has spent less than other space agencies but how similar are the corresponding missions? The organisation’s payloads are often much lighter, carry fewer instruments, and are less capable of cutting edge science. The bigger story is that ISRO is trying (and which could be even bigger if there was a long-term plan that showed how all the smaller scale attempts added up). However, it’s not that ISRO is doing what NASA is because it simply isn’t.

    There is no reason for NASA to squirm and be uncomfortable, either: the cost reflects the strength of the US dollar and the organisation of the US economy. It also accounts for NASA being responsible for receiving, processing, distributing, and archiving NISAR data for the whole world, whereas ISRO is responsible for doing the same thing only vis-à-vis India.

    The NDTV article goes on to say:

    There are many reasons behind the huge cost incurred by NASA, one of them being that most of the development of the instruments and payloads they fly are made by huge multi-national corporations and they not only need huge profits but also need to share dividends with their share-holders. ISRO, on the other hand, being a national entity does these things in-house and has no reason to pad up the cost to share profits with share-holders.

    NASA’s principal contribution to NISAR was the L-band synthetic aperture radar (SAR) and the associated avionics and the 12-m mesh antenna plus the 9-m boom holding it. All these components were made at NASA’s Jet Propulsion Laboratory, just as ISRO’s contributions onboard NISAR came from its Space Applications Centre in Ahmedabad.

    Additionally, an ISRO official said that when their scientists travel to the Jet Propulsion Laboratory in Pasadena in California, they would stay in shared $100 a day room while the NASA scientists when they travel to the UR Rao Satellite Center in Bengaluru would stay in an over $500 a day room. This automatically inflates the costs.

    We’re talking about a monetary difference of more than 10x between nine- and ten-digit figures. I highly doubt that a small group of scientists staying for N number of days in $500 rooms could make much of a difference. Even if these costs added up in the alleged manner, living comfortably in clean environs is more important than roughing it out to save pennies. I’m also tempted to say that rooms and kitchens in cheaper hotels in the US are likely cleaner than most hotels in India.

    Also, India usually makes only one instrument the one that will fly into space, while NASA makes an engineering model and flight model, which leads to doubling the cost.

    It increases the cost. However, the engineering model is a fully functional hardware unit that can be subjected to full-scale integration testing without risking the actual flight unit. Teams can also work on software development, system integration, and ground testing in parallel while the flight model is still being assembled, avoiding bottlenecks and improving the flight model’s build. If an issue arises after launch, engineers on the ground replicate the problem on the engineering model before trying fixes on the actual spacecraft — an ability that came in handy during the Boeing Starliner crewed flight test. Finally, the engineering model is subjected to more aggressive and destructive testing, and what engineers learn they use to improve the flight model, increasing the chances that it will succeed. In the end, for the additional cost, NASA is able to send better instruments to space that operate within narrower margins of error.

    The funny thing is ISRO may also have to switch to similar developmental processes in future as it embarks on more sophisticated projects, including interplanetary sample-return missions and crewed lunar landings. I hope ISRO, unlike NDTV, isn’t taking overmuch pride in its supposed frugality.

    The way human power is distributed is also very different between NASA and ISRO at the Indian space agency. In the case of NISAR, which has taken over 11 years to build, the teams at ISRO working on multiple satellites and the salaries in India also turn out to be much lower when converted into dollar terms. The top manager at ISRO also pointed out that ISRO engineers are willing to put in long hours and work over weekends, while the US contract engineers are reluctant to put in long hours.

    Don’t just convert it into dollar terms. Also check whether the values of each work-hour with respect to the national economy in the two countries are comparable. Short of that, let’s avoid such comparisons altogether.

    There’s also more than meets the eye in valorising people being “willing” to put in longer hours and to work over the weekends while diminishing a person’s reluctance to do so. In fact, there’s a thin line between a person volunteering to put in extra and a person being expected to put in extra. I’ve seen firsthand company cultures veering over time to make the latter a foundational expectation, with managers often justifying it by saying things like “this is what it takes”, “do it for the <insert cause here>”, and “if you don’t want to, you’re in the wrong industry”. It is a worker’s right to limit their working hours to the stipulated ones. If India’s satellites are cheaper because ISRO is overworking its labour force, we’re doing it wrong — and the bill will soon come due.

    The premium for insurance also adds to the costs at ISRO since the government takes the full liability and no insurance is taken. In other countries, insurance premiums can be a huge cost. Incidentally, when India launched its communication satellite using the SpaceX Falcon-9 rocket, India also took insurance.

    NISAR costs around $1.5 billion. If I’m not mistaken, launch insurance typically costs 15-25% of the total insured value, which is the cost to replace the satellite and to launch it. In this case that would be $225-375 million. After launch coverage expires (which is when the satellite completes one year in orbit), the annual in-orbit insurance usually costs 1-3% per year, which is around $15-45 million a year. Given NISAR’s expected lifetime of three years, the total insurance cost could be $255-465 million; if we go by NISAR’s design lifetime of five-plus years, it could come to $285-555 million.

    The NDTV article also calls out the irony inherent to a NASA satellite scheduled to lift off onboard a GSLV Mk-II rocket. To the uninitiated: this is deserved because the US government scuttled a deal in the early 1980s for the Soviet Union to transfer cryogenic engine technology to India. India was subsequently forced to develop the engines on its own by taking apart and studying the Soviet engines it was able to buy, ultimately building the machine that powers the third stage of the GSLV Mk-II. (Edit: updated at 8.43 pm on July 31, 2025, from “fourth” to “third” stage.) However, the narrative goes on:

    Some would say this is an irony of ironies, and some would say it is egg on the face of US.

    Unless the article could quote someone (by name) actually making these claims, the strength of language in the second half of the statement is unfounded. In fact, the author may have been better off staking the claim themselves — “I believe this is egg on the US’s face” — but even then they will have to justify how it can be reconciled with several changes in NASA’s and the US’s leadership as well as policies regarding working with ISRO/India since the 1980s.


    Rather than concern ourselves with superficial one-upmanship, we would be better off discussing the demands of the different realities of ISRO and NASA. Both organisations have made conscious choices to develop spacecraft the way they do. Their needs are different and their political-economic contexts are wildly different. Expenditure and achievement may not be directly related because material and labour costs are lower in India yet they are deeply connected to an ambition mismatch as well. In order for ISRO to contribute Rs 800 crore to a climate-focused Earth-observing mission, (i) NASA had to conceive of NISAR based on climate scientists’ inputs and (ii) spend $1.1 billion of its own for the L-band SAR and the giant antenna, without which even ISRO’s S-band SAR wouldn’t have the resolution and swath width it currently does. But to be sure: one’s ambitions are not ‘greater’ than the other’s; they’re just different.t

    It also matters that, leading up to the launch, NASA officials and scientists have embarked on a media blitz. It’s proving really easy right now to catch hold of a NASA scientist for an extended interview on NISAR — but not an ISRO scientist.

    For all these reasons, it’s always more sensible to celebrate ISRO in terms that don’t invoke rupees or by comparing and contrasting its feats with that of another space agency.

  • JPL layoff isn’t the fall of a civilisation

    A historian of science I follow on Twitter recently retweeted this striking comment:

    While I don’t particularly care for capitalism, the tweet is fair: the behemoth photolithography machine depicted here required advances in a large variety of fields over many decades to be built. If you played the game Civilization III, a machine like this would show up right at the end of your base’s development arc. (Or, in Factorio, at the bottom of the technology research tree.)

    Even if we hadn’t been able to conceive and build this machine today, we still wouldn’t invalidate all the years of R&D, collaboration, funding, good governance, and, yes, political stability that came before to lead up to this moment. As such, the machine is a culmination of all these efforts but it isn’t the efforts themselves. They stand on their own and, to their great credit, facilitate yet more opportunities.

    This may seem like a trivial perspective but it played through my mind when I read a post on the NASA Watch website, written by a Jeff Nosanov, a science-worker who used to work with the NASA Jet Propulsion Laboratory (JPL) until 2019. I was surprised by its tone and contents because they offer a twisted condemnation of why JPL was wrong to have laid off some 530 people last week.

    According to CBS:

    “The Los Angeles County facility attributed the cuts to a shrinking budget from the federal government. In an internal memo, the laboratory expected to receive a $300 million budget for its Mars Sample Return project for the 2024 fiscal year. Director Laurie Leshin said this accounts for a 63% decrease from 2023.”

    Nosanov, however, would have us believe that the layoffs lead to the sort of uncertainties in the US’s future as a space superpower that history confronted the world with when the Roman empire fell, the Chinese navy dwindled in the early 16th century, and the Soviet Union collapsed in 1991. To quote:

    “The leaders of the past may not have known they were making historic mistakes. The Danish explorers who abandoned Canada may not have known about the Western Roman Empire. The Chinese Navy commanders may not have known about the Danish. Lost in the mists of history, those clear mistakes are understandable. Their makers may not have had the same knowledge of world history that we have today. But we do not have the excuse of ignorance.

    History shows us both what happens when a superpower abandons a frontier – someone else takes it, and that such things are conscious choices. It is the height of folly, arrogance, and fully-informed ignorance for our leaders to allow this to happen. It will lay morale in a smoking ruin for a generation and hand the torch to China, who will be glad to take the lead. Humans will lead into the darkness, but they may not be American. That may not be the worst thing in the world, but it was not always the American way.”

    The conceit here is breathtaking, patronising, and misguided. The fates of empires and civilisations have turned on seemingly innocuous events, sure, but NASA not being able to operate a Mars sample-return mission to the extent it would have liked in 2024 will not be such an event.

    There are of course pertinent questions about whether (i) scientific work is implicitly entitled to public funding (even when it threatens to runaway), (ii) space science research, including towards an ambitious Mars mission, mediates the US’s space superpower status to the extent Nosanov claims it does, and (iii) this is the character of JPL’s drive in today’s vastly more collaborative modern spaceflight enterprise.

    For example, Nosanov writes:

    “JPL has produced wonders that have explored the farthest (the Voyager space probes left the solar system), dug the deepest (rovers and landers exploring the mysteries of life and the solar system underground on other planets) and lit the darkness (examined objects in space that have never – in five billion years – seen the light of the sun) of any of humanity’s pioneers.”

    Many other space agencies with which NASA has allied through its Artemis Accords, among other agreements, are pursuing the same goals – explore the farthest, dig the deepest, light the darkest, etc. – with NASA’s help and are also sharing resources in return. In this milieu, harping on sole leadership because it’s “the American way” is distasteful.

    As such, as a space superpower, the US brings a lot to the table, but I’m certain we’ll all be the better for it if it leaves any dregs of a monarchical attitude it may still retain behind. Of course, Nosanov isn’t JPL and JPL, and NASA by extension, are likely to have a different, more mature view. But at the same time, I saw many people sharing Nosanov’s post on Twitter, including some whose work and opinions I’ve respected before, but not one of them flagged any issues with its tone. So I’d like to make sure what the ‘official opinion’ is.

    The simple reason JPL’s current downturn won’t be a world-changing event is that, despite recounting all those decisive moments from the past, Nosanov ignores the value of history itself. Recall the sophisticated photolithography machine and the summit of human labour, ingenuity, and cooperation it represents. Take away the machine and you have taken away only the machine, not the foundations on which the possibility of such innovation rests.

    Similarly, it is ludicrous to expect anyone to believe NASA’s pole position in human and robotic spaceflight is founded only on its Mars sample-return mission, or in fact any of its Mars missions. This fixation on the outcomes over processes or ingredients over the recipe is counterproductive. The US space programme still has the knowledge and technological foundations required to manufacture opportunities in the first place – and which is what other countries are still working on building.

    Put differently, that an entity – whether a space agency or a country – is a superpower implies among other things that it can be resilient, that it can absorb shocks without changing its essential nature. But if Nosanov’s expectations are anything to go by and the US falls behind China because JPL received 63% less than its demand from the US government, then perhaps it deserves to.

    Realistically, however, JPL might get the money it’s looking for in future and simply get back on track.

    The only part of Nosanov’s post that makes sense is the penultimate line: “JPL – and the people who lost their jobs today – deserve better.”

  • Europa’s ice shell could be quaking

    Even before astronomers noticed last year that Europa was spouting jets of water vapor from its icy surface, they thought there was something shifty about Jupiter’s moon. While the 66 other Jovian moons are pitted with craters, Europa sports some unusual blemishes: an abundant crisscrossing of ridges tens of kilometres long. Many are abruptly interrupted by smooth ice patches.

    Two geologists think they can explain why. Backed by photos taken by the Galileo space probe, they suggest Europa’s thick shell isn’t continuous but is made up of distinct plates of ice. These plates move away from each other in some places, exposing gaps which are then filled by deeper ice rising upward. In other places they slide over each other and push surface ice downward and form ridges.

    “We knew that stuff has been moving over the surface, and up from beneath and breaking through, but we weren’t able to figure where all the older stuff was going,” said study coauthor Dr. Louise Prockter, a planetary scientist at Johns Hopkins. “We’ve found for the first time evidence that material is going back into the interior.” The study was published last month in Nature Geoscience.

    On Earth, this kind of tectonic activity replenishes compounds necessary for life, such as carbon dioxide, by letting them move up from the interior through fissures to the surface. Now, scientists say a similar mechanism could apply to Europa. Astronomers think the moon harbors a subsurface ocean of liquid water that feeds the vapor plumes, and could be habitable.

    “It’s certainly significant to find another solid body in the solar system that undergoes some kind of surface recycling,” said Peter Driscoll, a planetary scientist at the University of Washington who was not involved in the study.

    Prockter, together with Simon Kattenhorn, a geologist at the University of Idaho, Moscow, worked with photographs of a part of Europa’s surface covering 20,000 km2. The pictures were shot by Galileo when it orbited Jupiter from 1995 to 2003.

    “We go in using something like Photoshop and start cutting the image up,” Dr. Prockter explained. They then pieced them back together so that the crisscrossing ridges lined up end-to-end, and compared what they had to the surface as it is today.

    “Once we started doing the reconstruction, we ended up with a big gap right in the middle,” she said.

    The researchers concluded the missing bit had dived beneath another plate.

    Although only some of Galileo’s photographs were at a resolution high enough to be useful for the study, Dr. Prockter said it was unlikely that their finding was a one-off because signs of displacement were visible all over Europa’s surface.

    Nevertheless, Dr. Driscoll cautioned against using Earth’s tectonic activity as a model for Europa’s. “There are a number of missing features” that define tectonics on Earth, he said, such as arc volcanos and continents. “And many of the properties of Earth’s features may not be expected for an icy shell like Europa, where the materials are extremely different.”

    A better gauge of these disparities might be a probe to the Jovian moon that NASA has planned for the mid-2020s.

    “I think the timing right now is very important,” said Candice Hansen, a member of NASA’s Planetary Science Subcommittee. She says the Europa study will help scientists working on the probe secure the requisite funding and commitment from Congress.

    “I am very enthusiastic about a mission to Europa, and this exciting result is one more reason to go,” she said.

    Artist's concept of the Europa Clipper mission investigating Jupiter's icy moon Europa.
    Artist’s concept of the Europa Clipper mission investigating Jupiter’s icy moon Europa. Image credit: NASA/JPL-Caltech