Tag: Chandrayaan 3

India’s science leadership

On October 17, the National Council for Education Research and Training (NCERT) introduced a reading module for middle-school students called “Chandrayaan Utsav”. It was released by Union Education Minister Dharmendra Pradhan in the presence of S. Somanath, Chairman of the Indian Space Research Organisation, and claims that the Chandrayaan-3 achievement was great but not the first, that “literature tells us that it can be traced back [to the] Vymaanika Shaastra: Science of Aeronautics, which reveals that our country had the knowledge of flying vehicles” in ancient times.

ISRO is currently flying high on the back of completing the first uncrewed test flight of the Gaganyaan mission, the launch of Aditya-L1 to study the sun, and the success of the Chandrayaan-3 mission. Yet in May, Somanath had said at another event in Ujjain that many mathematical concepts as well as those of time, architecture, materials, aviation, and cosmology were first described in the Vedas, and that “Sanskrit suits the language of computers”.

Such pseudoscientific claims are familiar to us because many political leaders have made them, but when they are issued by the leaders of institutions showing the country what good science can achieve, they set up more than a contradiction: they raise the question of responsible scientific leadership. Obviously, the first cost of such claims is that they do unto the Vedas what the claimants claim the liberals are doing unto the Vedas: forgetting them by obscuring what they really say. Who knows what the Vedas really say? Very few, I reckon – and the path to knowing more is now rendered tougher because the claims also cast any other effort to study the Vedas – and for that matter any other fields of study in ancient India – suspect.

But the second, and greater, cost of such pseudoscientific claims relates to the need for such leadership. For example, why don’t the claimants display confidence in the science being done today? (We’ve seen this before with the Higgs boson Nobel Prize and S.N. Bose as well.) I would have liked Somanath to speak up and refute Pradhan on October 17 but he didn’t. But what I would have liked even more is for Pradhan to have held forth on the various features of the Chandrayaan-3 lander and the challenges of developing them. There is a lot of good science being done in India today and it is sickening that our politicians can’t see beyond something that happened 7,000 years ago, leave alone understand the transformative new technologies currently on the anvil that will define India’s ability to be any kind of power in the coming centuries.

A friend of mine and a scholar of history recently told me that Homi Bhabha chaired the International Conference on the Peaceful Uses of Atomic Energy in Geneva in 1955 – when India didn’t have nuclear power. That kind of leadership is conspicuous by absence today.

A difficulty celebrating Chandrayaan 3

I’m grateful to Avijit Pathak for his article in Indian Express on August 29.

After the Chandrayaan 3 mission achieved its primary objective, to soft-land a robotic lander on the moon’s south polar region, there was widespread jubilation, but I couldn’t celebrate. I felt guilty and distressed, actually, with the thought that my well-rewarded scepticism of India’s affairs these days had finally scabbed over (and back) into cynicism. Even the articles I wrote on the occasion had to pass via the desk of a colleague, who helped spruce them up with some joy and passion.

I had a few hypotheses as to the cause. One was that, by virtue of knowing what exactly happened behind the scenes, and having followed it for many years, I saw the really wow-worthy thing to be some solution to some problem with Chandrayaan 2 that, if fixed, would lead to success today. But something about it didn’t ring true.

Another that did was rooted in an anecdote I’d heard or read many years ago, I can’t recall where. There was a stand-up comic event in Bombay. During a break, the comic steps out to the side of the building and has a smoke. A short distance away, he sees some people from the audience stream out for some fresh air. A beggar approaches this group asking for money. They tell him that if he shouts BMKJ, they will give him 10 rupees. He does, and they hand him the money and walk back in. The comic (who is the narrator) then says that he doesn’t want to make this crowd laugh and leaves.

I don’t know if I have ever been a nationalist but I have been and am a patriot. In his article, Pathak berated the “muscular nationalism” fostered by the Bharatiya Janata Party and its consequences for the forms that the education, practice, and expression of science have taken in the country. In this milieu, he wrote, he couldn’t bring himself to overtly celebrate the success of Chandrayaan 3, tracing his arrival at this conclusion from the ‘first principles’ of the reactions to the mission, its “political appropriation” by the powers that be, and the unglamorous nature of work to bridge the “gap between technology as a spectacle and science as a way of life”. It is this articulation for which I’m grateful: I couldn’t find the path myself, but now I know.

Celebration isn’t for the outcomes of a single mission on one occasion. It’s for all the outcomes of a process that assimilates many impulses, driven by multiple beliefs and aspirations. Chandrayaan 3 may have been a resounding success but imagine it is one point in a process, and then take a look at what lies behind it. I see an island called ISRO, the unique consequences of India’s fortuitous history, and the miracles that have become necessary for celebration-worthy scientific success in India today.

Among the distributed sweets, the light and sounds of the firecrackers, and the torrent of applause, I sense the comedian’s jokes to ease the mind of a nation that preserves this state of affairs.

NYT’s ISRO coverage continues assault on sense

The New York Times refuses to learn, perpetuating views of ISRO that are equal parts blurry and illiterate, and often missing points that become clearer with just a little bit of closer reading. The launch and subsequent success of Chandrayaan 3 brought its annoying gaze the way of India and its space programme, about which it published at least one article whose interpretation was at odds with reality. But for the newspaper’s stubbornness, and unmindful of the impact it has on the minds of its large audience in India, pushback is important, even just a little, when and where possible. This is another such attempt. On August 24, the day after the Chandrayaan 3 lander module descended on the moon’s surface in the south polar region, The New York Times published an article trying to tie the mission’s success with India’s ascendancy aspirations. Annotated excerpts follow:

Meet frugality porn – when this style of administration and work is exalted without acknowledging the restrictions it imposes. We see more of it in the coming paragraphs.

It’s amusing how this question – once rightly derided as superficial – has of late come to be legitimised in articles by the BBC and now The New York Times.

Just one ISRO success and this is the crap we need to deal with. What “deeply rooted tradition”? What “pillar” of India’s rise? Name one field of research and I will point you to articles discussing deep-seated problems in it, ranging from paucity of funds for research to academic freedom, from shortcomings in research infrastructure and environments that are overcome almost entirely by enterprising researchers going out of their way to help others to bureaucratic and government interference that vitiates the uptake of research findings in the public sphere. If anything, the article suggests that the blueprint India is offering other nations is: “Get one pretty important moon mission right and the world’s most read newspaper will pretend that you have arisen, to the ignorance of very real, very bad problems.”

a) The governments of India and the US have allocated to ISRO and NASA similar fractions of their national budgets. b) Scientists are paid much better in the US than in India, at all levels, after adjusting for differences in purchasing power. c) NASA operates one of the world’s best public outreach efforts for a state-run entity while ISRO has no such department. The “potent message” that The New York Times is tooting is, in sum, hard to understand and potentially dangerous.

This is the same Modi who thought it best to plaster his portrait on all vaccination certificates (instead of photos of the respective vaccinees) but refused to investigate the Adani Group after Hindenburg’s allegations, who didn’t utter a peep about the incidents of brutal violence in Delhi, Hathras, Manipur or Nuh but whose giant face appeared on the screen about to show the last few – and most important – seconds of the Chandrayaan 3 lander’s descent on the moon’s surface, sending almost every viewer nationwide into paroxysms of rage. I’m not sure of the purpose of describing him in such positive terms vis-à-vis his communication.

The outcome of the Chandrayaan 3 mission created something that has become extremely rare in India since 2014: a success that could be celebrated sans any reservations. But it didn’t prove a way to overcome the “fiercely fractious politics”; in fact, it became yet another point – among the extant thousands – over which to deepen divisions and render impotent the effects of public debate on governance. In fact, absolutely every major national success since 2014 has been used to fuel the fire that is the “fiercely fractious politics”. And again, I fail to see these resources that India “is finally getting”.

Get a historian of science and technology in India since independence – i.e. someone who studies these things closely, going beyond appearances to examine the effects of scientific and/or technological development and practices on all classes of society – to say the same thing, and then we’ll talk. Until then, spare me the superficial and status-quoist reading of the place of science in India. Some suggested reading here, here, and here.

Finally, an acknowledgment of the problem with “frugality” and “shoestring” budgets, yet not nearly in the same context. And the second highlighted line is either a bald-faced fabrication or a reluctance to acknowledge reality: that scientists have been discouraged, silenced and/or harassed when their work is something a) that the state doesn’t know how to integrate into its nationalist narratives, b) that disputes, negates or complicates something whose public understanding the state would like to control but isn’t able to, or c) that the state simply cares little for.

The highlighted portion? True everywhere, all the time. Commendable, but not special.

You’ve got to be kidding me. Here we have The New York Times reviving the desiccated corpse of the beast that so many laboured to kill and bury: the comparison of ISRO’s Mars Orbiter Mission (MOM) with the 2013 film Gravity and, by implication, NASA’s MAVEN mission. MOM was a technology demonstrator that cost Rs 454 crore (around $57 million), and whose scientific results did little to advance humankind’s understanding of Mars. Its principal accomplishment is that it got into orbit around Mars. MAVEN cost $582.5 million, or Rs 3,410.53 crore (assuming a conversion rate of Rs 58.55 to a dollar in 2013). For that its scientific output was orders of magnitude more notable than that from MOM.

As for Gravity: I’ve never understood this comparison. The film cost $80-130 million to make, according to Wikipedia; that’s 468.40-761.15 crore rupees. So what? Gattaca cost $36 million and Interstellar cost $165 million. Moon cost $5 million and Into Darkness cost $185 million. Can someone explain the comparison to me and actually have it make sense?

This is the note on which the article ends, which matters because what goes here has the privilege of delivering a psychologically impactful blow, and the writer (and/or editor) has to be careful to choose something for this portion whose blow will line up with the whole article’s overarching message. I’m disappointed that The New York Times picked this because it’s of a piece with the same casteist and classist politics and policies that, for India’s non-elite hundreds-of-millions, have disconnected “working hard” from financial, educational, biomedical, and social success even while keeping up the myth of the wholesomely gainful productivity.

Looking (only) for Nehru

I have a habit of watching one old Tamil film a day. Yesterday evening, I was watching a film released in 1987, called Ivargal Indiyargal (‘They Are Indians’). In a scene in the film, an office manager distributes sweets to his colleagues. One of them takes a look at the item and asks the manager if he bought it from a particular shop that was famous for such items. The manager takes umbrage and scolds his colleague that he’s been asking that question for too many years, and demands to know if no other good sweet shop has opened since.

An innocuous scene in an innocuous film, yet it seemed to have a parallel with the Chandrayaan-3 mission. On August 23, as I’m sure you’re aware, the mission’s robotic lander module touched down in the moon’s south polar region, rendering India the first country to achieve this feat. It was a moment worth celebrating without any reservations, yet soon after, the social media commentariat had found a way – admittedly not difficult – to make it part of its relentlessly superficial avalanche of controversy and dissension. One vein of it was of course split along the lines of what Jawaharlal Nehru did or didn’t do to help ISRO in its formative years. (The Hindu also received some letters from readers to this effect.)

But more than right-wing nuts trying to rewrite history in order to diminish the influence of Nehru’s ideals on modern India, I find the counter-argument to be curious and, sometimes, worth some concern. The rebuttals frequently take the form that we must remember Nehru in this time, the idea of scientific temper with which he was so taken, the “importance of science” for India’s development, the virtues of Nehruvian secularism, and so forth. It seems to be a reflex to leap all the way back to the first 16 years after independence, always at the cost of many more variants of all these ideals, often refined or revised to better accommodate the pressures of development, modernisation, and globalisation. (See here for one example.)

Members of the Congress party are partly to blame: sometimes they seem incapable of commemorating an event in terms other than that Nehru set the stage for them many years ago. BJP nationalists have also displayed a similar tendency. For example, in 2013, after Peter Higgs and François Englert were awarded the physics Nobel Prize for predicting the existence of the Higgs boson, the nationalists demanded that the laureates should have honoured Satyendra Nath Bose, whose work laid the foundation for the study of all bosons, and that the ‘b’ in ‘boson’ should always be capitalised. It was a ridiculous ask that was disinterested in work that had built on Bose’s ideas and papers in the intervening years, and also betrayed a failure to understand how really a scientist and thinker of Bose’s calibre ought to be honoured, more than capitalising little letters.

Similarly, today, the full weight of Nehru’s legacy is invoked even to counter arguments as rudimentary as chest-thumping. To quote the office manager in Ivargal Indiyargal, has there been no other articulation of the same impulses? My concern about this frankly insensible habit to reach for Nehru is threefold: first, it will overlook other ideas from other individuals grounded in different lived experiences (especially those of marginalisation); second, the moments in which he is invoked are conducive to glazing over the problems, found only upon a closer look, with what Nehru and for that matter Vikram Sarabhai, Satish Dhawan, and others stood for; and third, perhaps I’m a fool to look for sense where it has seldom been found.

Land on the moon, feet on the earth

Yesterday was fantastic. India made a few kinds of history, when one is great enough, by autonomously landing a robotic instrument in the moon’s south polar region. Some seven hours later, it deployed a rover, bringing the Chandrayaan-3 mission’s toughest phase to a resounding close and beginning its scientific mission, significant in its own right for being the first to be undertaken in situ in this part of the earth’s natural satellite. As a colleague told me yesterday, the feat is one that we can celebrate unreservedly – an exceedingly rare thing in today’s India. That, however, still hasn’t sufficed to keep either the accidental or the deliberate misinformant quiet. I woke up this morning to several WhatsApp-borne memes proclaiming, in different ways, that the moon’s south pole and/or the far side was now India’s. The spirit of the message is obvious but that doesn’t mean it can’t be mistaken. India’s feat is to do with the moon’s south polar region; the distinction of the first autonomous robotic landing on the far side belongs to China (Chang’e 4 in 2019). But the most egregious offender today (so far) seems to be The Indian Express, whose front page is this:

We are all over the moon but let’s keep our feet on the ground: India has achieved a profound thing by getting a robotic representative on the moon’s surface, and just as we took a long road to get here, there’s a long road to go. And on this road, we should develop a habit of seeing the moon as ours – including us and our collaborators – and make sure our expressions of joy have room for the spirit of cross-border teamwork. Let’s resist casting Chandrayaan-3 as comeuppance for past slights, as the triumph of a narrowly defined self-sufficiency, or as to make a mountain out of molehill – a deceptively dangerous misstep that can quickly confuse ability for entitlement. I would much rather always celebrate the former rather than admit even a little bit of the latter. Congratulations, Chandrayaan-3, and congratulations, ISRO! It’s difficult to overstate the significance of the events of August 23, 2023 – but it’s still possible.

Landing Day

Good luck, Chandrayaan 3. Good luck also to all the journalists covering this event from within India – a unique location because it’s where you will feel the most excitement today about the mission’s activities on the moon as well as the most difficult path to accessing bona fide information about them (thanks to the misinformation, sensationalism, and ISRO’s and the Indian government’s tendency to stop sharing information rather than more of it when something goes awry). So, I hope your memories serve you well and every detail that you recall is completely factual.

India is also a unique location because it’s going to the moon today. I’ve always felt somewhat uncomfortable with the idea that humans have gone to the moon. Whether you’re human or an alien to whom human geopolitics is trivial in the scheme of things, humans never went to the moon. People did. And people are divided along very many lines. Cooperation has come and gone, to the extent that there’s still considerable value for some country to have successfully executed its own moon-landing mission (robotic or otherwise). This is a bit of a tragedy given we’re all in this together and all that, but at the same time it would be naïve to believe otherwise.

And today, India will be taking its best shot at having a robotic lander autonomously soft-land on the lunar surface. I encourage you to follow the landing sequence on DD National (on TV), on YouTube livestreams of ISRO or the Press Information Bureau, or on a live blog on The Hindu (with real-time updates and analysis). Two hours before the lander’s powered descent – the label for the landing – is set to begin at 5.45 pm, ISRO will check whether all conditions are favourable to go ahead. If they are, the livestream will begin at 5.20 pm and the descent is expected to last around 19 minutes. If you’re new to all this, please check out The Hindu today for a full-page graphic on what to expect.

Making sense of Luna 25

At the outset, let’s hope the unfortunate demise of Russia’s Luna 25 mission to the moon will finally silence the social media brigade that’s been calling it a competitor to India’s Chandrayaan 3 – although I wouldn’t put it past some to thump their chests over the latter succeeding where the former couldn’t. To understand why it never made sense to claim CY 3 and Luna 25 were in a race, I highly recommend Jatan Mehta’s points.

With this behind us: there are several interesting ways to slice what happened to Luna 25, beyond the specific technical points of failure on the spacecraft. Two seem particularly notable, to my mind.

First, since it became clear that Luna 25 had erred with an orbit-lowering manoeuvre on August 19, Roscosmos, the Russian space agency, couldn’t communicate with it until the moon was over Russia, which in turn narrowed the window Roscosmos had to troubleshoot and fix the issue. The reason Russia had this problem is because it went to war, provoking stringent sanctions from many countries worldwide, including negating opportunities to make use of a global communications network to stay in touch with Luna 25.

On the other hand, the Indian Space Research Organisation (ISRO) will have assistance from the European and American space agencies to keep track of Chandrayaan 3.

The second is that, against the backdrop of the war and the consequent sanctions, Russia’s reputation as a space power is at stake. Luna 25 was in the works for more than two decades (initially under the name ‘Luna-Glob’) before it launched. When Russian’s lander-based Fobos-Grunt mission to Mars failed in 2012 – it couldn’t perform an orbit-raising manoeuvre around earth and fell back – the country decided that it wouldn’t be able to provide a lander as agreed to ISRO’s Chandrayaan 2 mission by 2015, so ISRO decided to develop its own lander (whose abilities will be tested for the second time come August 23).

(This legacy is yet another reason the coincidental attempts by Luna 25 and Chandrayaan 3 to soft-land on the moon was never a race.)

Fobos-Grunt’s failure together with other commitments further delayed the launch of Luna 25. One of these commitments was a lander for the European Space Agency’s (ESA’s) ExoMars mission, to deliver a rover named ‘Rosalind Franklin’ on Mars. But ESA terminated the deal in 2022 after Russia invaded Ukraine, postponing the mission to at least 2028. Finally, by the late 2010s, Luna 25 was ready.

Taken together, Russia wasn’t able to successfully undertake an interplanetary mission since Phobos 2 in 1989, shortly before the collapse of the Soviet Union. Due to the events of yesterday, this dubious record is now extended to 34 years – an unexpected turn of events for the country that launched the world’s first satellite. It also continues to delay the intended purpose of Luna 25 according to a Roscosmos statement: to “ensure Russia’s guaranteed access to the moon’s surface”.

Russia has also staunchly denied allegations that its economy is groaning under the weight of the sanctions imposed by the West, but its ability to recover from the failure and plan the next mission will surely be affected by limitations on what components it can import.

As the world’s spacefaring countries are getting the moon back in their collective sight, the US and China are leading the line-drawing on this occasion. But Russia – whose Luna 25 was ultimately intended as a statement that the country’s space power status is not on the decline – drew one of its own and paid a price for it.

(To whomever this message appeals, I hope filmmakers in India take note, since they have often villainised the notion of ISRO seeking or receiving help from other agencies in films and TV shows.)

The shadows of Chandrayaan 2

When in September 2019 the surface component of the Chandrayaan 2 mission failed, with the ‘Vikram’ lander crashing on the moon’s surface instead of gently touching down, there was a sense in all public spaces and conversations that the nation as a whole was in some grief. Until Wednesday, I couldn’t remember the excitement, anticipation, and anxiety that prevailed as the craft got closer to the moon, into its designated orbit, and began its descent. Wednesday was the start of the week before the second landing attempt, by the Chandrayaan 3 mission, and it all came screaming back.

Much of the excitement, anticipation, and anxiety that I’m feeling now as well is gratifying for the most part because it’s shared, that we’re doing this together. I cherish that because it’s otherwise very difficult to find with ISRO’s activities: all except the most superficial details of its most glamorous missions are often tucked away in some obscure corners of the web, it doesn’t have a functional public outreach unit, and there’s a lot of (unhelpful) uncertainty about the use of ISRO-made media.

But beyond facilitating this sense of togetherness, I’m concerned about ISRO’s sense of whether it should open itself up is now influenced by the public response to the Chandrayaan 2 mission, based on a parallel with India’s unfortunate tryst with solar cookers. In the early 1950s, the National Physical Laboratory fabricated a solar cooker with which the Indian government hoped to “transform household energy consumption … in a period of great uncertainty in food security and energy self-sufficiency,” in the words in The Hindu of science historian Shankar Nair. He continued:

The solar cooker was met with international press coverage and newsreels in the cinema. But the ‘indigenous’ device, based on a 19th century innovation, was dead in the water. Apart from its prohibitive price, it cooked very slowly. … The debacle caused the NPL to steer clear of populist ‘applied science’ for the remainder of K.S. Krishnan’s directorship.

Author Arun Mohan Sukumar recounted the same story but with more flair at the launch event of his book in Bangalore in March 2020:

A CSIR scientist said the failure of the solar cooker project basically ensured that all the scientists [who worked on it] retreated into the comfort of their labs and put them off “applied science”.

Here’s a project commenced almost immediately after independence meant to create technology by Indians for Indians, and after it failed for various reasons, the political spotlight that had been put on the project was counterproductive. Nehru himself investing this kind of capital exposed him and the scientific establishment to criticism that they were perhaps not used to. These were venerated men in their respective fields and they were perhaps unused to being accountable in this visceral way. …

This is the kind of criticism confronted by the scientific establishment and it is a consequence of politics. I agree with Prof [Jahnavi] Phalkey when she says it was a consequence of the political establishment not insulating the scientific establishment from the sort of criticism which may or may not be informed but you know how the press is. That led to a gradual breaking of ranks between the CSIR and the political vision for India…

The reflections of the solar-cooker debacle must be obvious in the events that followed the events of September 7, 2019. Prime Minister Narendra Modi had spoken of the Chandrayaan 2 mission on multiple occasions ahead of the landing attempt (including from the Red Fort on Independence Day). That the topmost political leader of a country takes so much interest in a spacefaring mission is a good thing but his politics has also been communal and majoritarian, and to have the mission invoked in conversations tinged with nationalistic fervour always induced nervousness.

Modi was also present in the control room as ‘Vikram’ began its descent over the lunar surface and, after news of the crash emerged, was seen hugging a visibly distraught K. Sivan, then the ISRO chairman – the same sort of hug that Modi had become famous for imposing on the leaders of other countries at multilateral fora. Modi’s governance has been marked by a fixation on symbols, and the symbols that he’d associated with Chandrayaan 2 made it clear that the mission was technological but also political. Its success was going to be his success. (Sample this.)

Sure enough, there was a considerable amount of post-crash chatter on social media platforms, on TV news channels, and on some news websites that tried to spin the mission as a tremendous success not worthy of any criticism that the ‘left’ and the ‘liberals’ were allegedly slinging at ISRO. But asking whether this is a “left v. right” thing would miss the point. If the sources of these talking points had exercised any restraint and waited for the failure committee report, I’m sure we could all have reached largely the same conclusion: that Chandrayaan 2 got ABC right and XYZ not so right, that it would have to do PQR for Chandrayaan 3, and that we can all agree that space is hard.

Irrespective of what the ‘left’ or the ‘right’ alleged, Chandrayaan 2 becoming the battleground on which these tensions manifested would surely have frayed ISRO scientists. To adapt Sukumar’s words to this context, the more cantankerous political crowd investing this kind of interest exposed ISRO to criticism that it was perhaps not used to. These were venerated men in their respective fields and they were perhaps unused to being accountable in this visceral way. This is the kind of criticism confronted by the scientific establishment and it is a consequence of politics…

The response to NPL’s solar cookers put scientists off “applied science”. Can we hope that the response to Chandrayaan 2 wouldn’t have put ISRO scientists off public engagement after Chandrayaan 3 ends, whether in (some kind of) failure or success? There are those of us beyond the din who know that the mission is very hard, and why, but at the same time it’s not like ISRO has always acted in good faith or with the public interest in mind. For example, it hasn’t released Chandrayaan 2’s failure committee report to date. So exercising the option of waiting for this report before making our minds up would have taken us nowhere.

(On the other hand, the officially determined causes of failure of the GSLV F10 mission – an almost apolitical affair – were more readily available.)

I’m also concerned whether ISRO itself can still construe respectful criticism of its work as such or will perceive it to be ideologically motivated vitriol. A characteristic feature of institutions overtaken by the nationalist programme is that they completely villify all criticism, even when it is merited. S. Somanath, ISRO’s current chairman, recently signalled that he might have been roped into this programme when he extolled “Vedic science”. If ISRO lets its response to failures be guided by politicians and bureaucrats, then we could also expect ISRO’s response to resemble that of the political class as well.

As always, time will tell, but I sincerely hope that it tells of one outcome instead of another.

Featured image: A view of the Chandrayaan 2 lander and rover seen undergoing tests, June 27, 2019. Credit: ISRO, dithered by ditherit.com.

A request to ISRO about Chandrayaan 3

The Indian Space Research Organisation (ISRO) has said its launch window for the Chandrayaan 3 mission is July 12-19. For now, the mission is expected to lift off on July 14 (at 2.35 pm IST). Chandrayaan 3’s mission is the same as that of its predecessor, Chandrayaan 2, with some marginal additions.

It has the same hardware configuration, including a lander named ‘Vikram’ containing a rover named ‘Pragyan’, attached to a propulsion module. The surface lunar mission has a planned lifetime of 14 days. The lander has four scientific payloads and the rover, two. The propulsion module itself has one. The biggest difference between the two missions, it would seem, are changes to reduce the chances of another crash-landing. As Jatan Mehta wrote in his ‘Moon Monday’ newsletter:

To increase the chances of sticking the landing this time around, ISRO has made several upgrades to the Chandrayaan-2-like lander, such as software improvements to accommodate failure, strengthened legs, a couple of new sensors for enhanced and redundant navigation-related measurements, and better power and communication systems.

Chandrayaan 3’s success will strengthen India’s position within the Artemis Accords, which it signed just last month, because it will make the country one of only four to have landed and operated a rover on the Moon. But as much as ISRO has a good reason to aim for success, it may have an opportunity if the mission fails as well – an opportunity to show that it has matured as an organisation.

The Chandrayaan 2 mission experienced a partial, but significant, failure on September 7, 2019, when its lander, bearing the rover, crashed on the lunar surface instead of gently touching down. ISRO researchers later traced the problem to a glitch in the onboard computer that lowered the amount by which the lander had to decelerate as it descended and an issue in the propulsion system. But a few months passed between the crash and the crash report, and in this time, the public conversation surrounding the accident was a cesspool of hyper-nationalist narratives and counterproductive statements by senior ISRO members.

As soon as news of the lander’s crash became public, ISRO stopped communicating updates, and refused to admit – despite all the evidence pointing that way – it had happened for a full week. In keeping with the national BJP government’s mission until then to make the Indian space programme a matter of national pride by couching its feats in a nationalist narrative, social media platforms were inundated with claims from the usual corners that the part of the mission that had failed was a “technology demonstrator” that made up a minor part of Chandrayaan 2.

Around this time, then ISRO chief K. Sivan also told journalists that the Chandrayaan 2 mission was a “98% success” – a stunningly disingenuous attempt to downplay what had been, until the mission’s launch, the basis of many of ISRO’s claims to greatness as well as which had occupied hundreds of scientists and engineers for several years. Technology demonstrators are important, but ‘Vikram’ and ‘Pragyan’ weren’t just that; more importantly, no way they were just 2% of the mission. Yet Sivan had been the one to say such a thing, even if he later palmed the blame off to a review committee, even as the organisation he helmed made Herculean efforts to reestablish contact with ‘Vikram’. All of this vitiated the narrative of the incident.

To make matters worse, after the lander’s crash on the day, journalists gathered at the ISRO HQ in Bengaluru were treated to a scene as Pallava Bagla shouted demanding Sivan address them. When ISRO members other than Sivan did turn up, he was rude. Bagla later apologised for his behaviour – but not before a senior Congress leader, Abhishek Singhvi, called Bagla “insane” and asked for him to be sacked. It seemed for a time that no one was interested in letting the dust settle.

For those who were plainly curious about the mission’s technical specifics as they existed, the specifics in which ISRO’s lessons for future missions, including Chandrayaan 3, would take root, the sole resource (in my limited experience) was the ISRO forum on Reddit, where independent spaceflight enthusiasts were putting together and combing through photos captured by NASA’s Lunar Reconnaissance Orbiter to find the lander’s resting place and clues to the cause of the accident.

The Indian government has a penchant for cutting access to information after major accidents and disasters. It did so after the Joshimath landslip, when ISRO reported that the town had slid by 5.4 cm in 12 days. It did so after it supposedly liberated Jammu and Kashmir by abrogating Article 370 of the Constitution. It did so after the Manipur riots and is yet to restore connections in the state, going so far as to brook long-winded arguments about access to VPNs in the process.

Even before Chandrayaan 2, there were some signs that ISRO had become part of the fold, including – but not limited to – the BJP government’s narratives of ISRO’s feats, the organisation’s increasing opacity, and pettiness in the face of criticism. In 2018, its then chief Sivan said that ISRO would like to lead international efforts to mine helium-3 on the Moon and transport it to the earth, disregarding the unhelpful hype and pseudoscience surrounding the isotope’s potential as a nuclear fuel.

More recently, Sivan’s successor and current chief S. Somanath claimed that India has had a “knowledge society” since “Vedic times”, that Indians’ accomplishments were appropriated by Western scholars who then regurgitated it as their own findings, and that “those working in the fields of artificial intelligence [and] machine learning love Sanskrit”.

These signs aren’t encouraging, but it’s possible to hope that these individuals and their advisors will put ISRO above themselves and their opinions. I sincerely wish that Chandrayaan 3 succeeds to the tune of 100%. At the same time, space is hard, as they say (especially for less-well-funded and less-well-technologically supplied organisations like ISRO).

And in the event of a failure, I hope ISRO will respond by sharing regular and timely updates, answer journalists’ queries, think before speaking, and, overall, conduct itself with the grace of being the premier space-faring body of the Global South.

Note: This article was updated at 5.10 pm on July 7, 2023, to include an issue with the propulsion system among the reasons Chandrayaan 2’s surface mission failed. Featured image: The LVM 3 launch vehicle lifts off bearing Chandrayaan 2 from Sriharikota, July 22, 2019. Credit: ISRO.

A new map of Titan

It’s been a long time since I’ve obsessed over Titan, primarily because after the Cassini mission ended, the pace of updates about Titan died down, and because other moons of the Solar System (Europa, Io, Enceladus, Ganymede and our own) became more important. There have been three or four notable updates since my last post about Titan but this post that you’re reading has been warranted by the fact that scientists recently released the first global map of the Saturnian moon.

(This Nature article offers a better view but it’s copyrighted. The image above is a preview offered by Nature Astronomy; the paper itself is behind a paywall and I couldn’t find a corresponding copy on Sci-Hub or arXiv nor have I written to the corresponding author – yet.)

It’s fitting that Titan be accorded this privilege – of a map of all locations on the planetary body – because it is by far the most interesting of the Solar System’s natural satellites (although Europa and Triton come very close) and were it not orbiting the ringed giant, it could well be a planet of its own accord. I can think of a lot of people who’d agree with this assessment but most of them tend to focus on Titan’s potential for harbouring life, especially since NASA’s going to launch the Dragonfly mission to the moon in 2026. I think they’ve got it backwards: there are a lot of factors that need to come together just right for any astronomical body to host life, and fixating on habitability combines these factors and flattens them to a single consideration. But Titan is amazing because it’s got all these things going on, together with many other features that habitability may not be directly concerned with.

While this is the first such map of Titan, and has received substantial coverage in the popular press, it isn’t the first global assessment of its kind. Most recently, in December 2017, scientists (including many authors of the new paper) published two papers of the moon’s topographical outlay (this and this), based on which they were able to note – among other things – that Titan’s three seas have a common sea level; many lakes have surfaces hundreds of meters above this level (suggesting they’re elevated and land-locked); many lakes are connected under the surface and drain into each other; polar lakes (the majority) are bordered by “sharp-edged depressions”; and Titan’s crust has uneven thickness as evidenced by its oblateness.

According to the paper’s abstract, the new map brings two new kinds of information to the table. First, the December 2017 papers were based on hi- and low-res images of about 40% of Titan’s surface whereas, for the new map, the authors write: “Correlations between datasets enabled us to produce a global map even where datasets were incomplete.” More specifically, areas for which authors didn’t have data from Cassini’s Synthetic Aperture Radar instrument for were mapped at 1:2,000,000 scale whereas areas with data enabled a map at 1:8,000,000 scale. Second is the following inferences of the moon’s geomorphology (from the abstract the authors presented to a meeting of the American Astronomical Society in October 2018):

We have used all available datasets to extend the mapping initially done by Lopes et al. We now have a global map of Titan at 1:800,000 scale in all areas covered by Synthetic Aperture Radar (SAR). We have defined six broad classes of terrains following Malaska et al., largely based on prior mapping. These broad classes are: craters, hummocky/mountainous, labyrinth, plains, lakes, and dunes [see image below]. We have found that the hummocky/mountainous terrains are the oldest units on the surface and appear radiometrically cold, indicating icy materials. Dunes are the youngest units and appear radiometrically warm, indicating organic sediments.

SAR images of the six morphological classes (in the order specified in the abstract)

More notes once I’ve gone through the paper more thoroughly. And if you’d like to read more about Titan, here’s a good place to begin.