NOT everything looks lovelier the longer and closer its inspection. But Saturn does. It is gorgeous through Earthly telescopes. However, the 13 years of close observation provided by Cassini, an American spacecraft, showed the planet, its moons and its remarkable rings off better and better, revealing finer structures, striking novelties and greater drama. . . .
By and large the big things in the solar system — planets and moons — are thought of as having been around since the beginning. The suggestion that rings and moons are new is, though, made even more interesting by the fact that one of those moons, Enceladus, is widely considered the most promising site in the solar system on which to look for alien life. If Enceladus is both young and bears life, that life must have come into being quickly. This is also believed to have been the case on Earth. Were it true on Enceladus, that would encourage the idea that life evolves easily when conditions are right.
One reason for thinking Saturn's rings are young is that they are bright. The solar system is suffused with comet dust, and comet dust is dark. Leaving Saturn's ring system which Cassini has shown to be more than 90% water ice out in such a mist is like leaving laundry hanging on a line downwind from a smokestack; it will get dirty. The lighter the rings are, the faster this will happen, for the less mass they contain, the less celestial pollution they can absorb before they start to discolour... Jeff Cuzzi, a scientist at America’s space agency, NASA, who helped run Cassini, told the Lunar and Planetary Science Conference in Houston that combining the mass estimates with Cassini's measurements of the density of comet dust near Saturn suggests the rings are no older than the first dinosaurs, nor younger than the last of them; that is, they are somewhere between 200 million and 70 million years old.
That timing fits well with a theory put forward in 2016, by Matija Cuk of the SETI Institute, in California and his colleagues. They suggest that at around the same time as the rings came into being an old set of moons orbiting Saturn destroyed themselves, and from their remains emerged not only the rings but also the planet’s current suite of inner moons — Rhea, Dione, Tethys, Enceladus and Mimas. . . .
Dr. Cuk and his colleagues used computer simulations of Saturn’s moons’ orbits as a sort of time machine. Looking at the rate at which tidal friction is causing these orbits to lengthen they extrapolated backwards to find out what those orbits would have looked like in the past. They discovered that about 100m years ago the orbits of two of them, Tethys and Dione, would have interacted in a way that left the planes in which they orbit markedly tilted. But their orbits are untilted. The obvious, if unsettling, conclusion was that this interaction never happened — and thus that at the time when it should have happened, Dione and Tethys were simply not there. They must have come into being later.
Data provided by Cassini challenged the assumption that:
- Saturn’s ring system is composed mostly of water ice.
there was life on earth when Saturn’s rings were being formed.
new celestial bodies can form from the destruction of old celestial bodies.
- all big things in the solar system have been around since the beginning.
The Correct Option is D
Solution and Explanation
The provided data from Cassini effectively contradicts the long-held assumption that all significant celestial bodies in the solar system, such as planets and moons, have been in existence since the solar system's formation. Cassini's observations led to the understanding that Saturn's rings are relatively young, estimated to be between 70 million and 200 million years old. This challenges the presumption that all large structures in the solar system are as ancient as its inception.
Supporting this, Cassini's findings reveal that Saturn's rings, composed mostly of over 90% water ice, appear bright due to their youth, as they have not yet darkened from space dust accumulation. Furthermore, studies by Matija Cuk et al. suggested the recent formation of Saturn’s rings and current moons like Rhea, Dione, Tethys, Enceladus, and Mimas due to the destruction of a previous set of moons. These insights demonstrate that new celestial bodies can arise from the disintegration of older ones, underscoring the ongoing dynamism within our solar system and refuting the idea that all large celestial structures have existed unchanged since the beginning.
| Cassini's Key Findings |
| Saturn's rings are relatively young. |
| Rings are over 90% water ice and still bright. |
| Evidence of new moons forming from old ones. |
| Planetary processes are ongoing and dynamic. |
Hence, the most directly challenged assumption by Cassini's data is that "all big things in the solar system have been around since the beginning."
The main objective of the passage is to:
- establish that Saturn’s rings and inner moons have been around since the beginning of time.
- demonstrate how the orbital patterns of Saturn’s rings and moons change over time.
- highlight the beauty, finer structures and celestial drama of Saturn’s rings and moons.
- provide evidence that Saturn’s rings and moons are recent creations.
The Correct Option is A
Solution and Explanation
To determine the main objective of the passage, we need to analyze the content's primary themes and implied conclusions. The passage discusses observations and scientific conclusions regarding Saturn's rings and moons based on data from the Cassini spacecraft. Key elements include:
The passage initially praises the beauty and complexity revealed by Cassini’s observations of Saturn, its rings, and its moons.
A hypothesis suggests Saturn’s rings and moons may be recent, due to their brightness and historical estimates of mass absorption and the density of comet dust indicating a younger age for these celestial objects.
The passage explains a theory by Matija Cuk and his colleagues, using computer simulations, suggesting Saturn’s current inner moons are relatively young, formed from the remnants of older moons approximately 100 million years ago.
The main objective of the passage aligns with the process of establishing that Saturn’s rings and inner moons are relatively young formations. Although there is mention of theories about their potential youth, the broader context emphasizes how observational data has shaped new theories about their existence, challenging the notion they have been around since the solar system's beginning. Therefore, the correct answer to the passage’s main objective is:
Based on information provided in the passage, we can infer that, in addition to water ice, Saturn’s rings might also have small amounts of:
- methane and rock particles.
- helium and methane.
- helium and comet dust.
- rock particles and comet dust.
The Correct Option is D
Solution and Explanation
The phrase “leaving laundry hanging on a line downwind from a smokestack” is used to explain how the ringed planet's:
- atmosphere absorbs comet dust.
- rings discolour and darken over time.
- rings lose mass over time.
- moons create a gap between the rings.
The Correct Option is B
Solution and Explanation
Based on information provided in the passage, we can conclude all of the following EXCEPT:
- Saturn’s lighter rings discolour faster than rings with greater mass.
- Saturn’s rings were created from the remains of older moons.
- none of Saturn’s moons ever had suitable conditions for life to evolve.
- Thethys and Dione are less than 100 million years old.
The Correct Option is C
Solution and Explanation
- Option 1: "Saturn’s lighter rings discolour faster than rings with greater mass."
- This conclusion can be drawn from the passage, as it states, "The lighter the rings are, the faster this will happen, for the less mass they contain, the less celestial pollution they can absorb before they start to discolour."
- Option 2: "Saturn’s rings were created from the remains of older moons."
- The passage supports this by mentioning, "They suggest that at around the same time as the rings came into being an old set of moons orbiting Saturn destroyed themselves, and from their remains emerged not only the rings but also the planet’s current suite of inner moons."
- Option 3: "none of Saturn’s moons ever had suitable conditions for life to evolve."
- The passage implies a contrary idea, stating that Enceladus is "widely considered the most promising site in the solar system on which to look for alien life." Thus, this option is not supported by the passage.
- Option 4: "Thethys and Dione are less than 100 million years old."
- The passage suggests through simulations that, "at the time when it should have happened, Dione and Tethys were simply not there," implying they are less than 100 million years old.
Top Questions on Reading Comprehension
- The advent of social media has dramatically transformed the way individuals consume and share information. In earlier times, people largely depended on newspapers, radio, or television as their primary sources of knowledge about the world. These were institutions that followed established editorial practices and fact-checking processes. With the rise of digital platforms, however, the traditional ‘gatekeepers’ of information have been bypassed. Today, anyone with internet access can create content, express an opinion, or broadcast an idea to a global audience within seconds.
This shift has certainly democratized access and given voice to communities and individuals who were often ignored by mainstream media. Yet, this democratization comes with challenges. Alongside genuine voices, social media has also amplified misinformation, rumours, and half-truths. Unlike traditional journalism, where accountability and verification are built into the system, social media thrives on speed, virality, and emotion. A misleading headline, a misinterpreted statistic, or even a doctored image can travel across the world before fact-checkers have the chance to intervene.
The consequences of such unchecked information can be serious, ranging from the spread of fear and panic to the manipulation of public opinion. The impact of this transformation extends beyond individual users to institutions and democracies. Political campaigns, corporate branding, and even social movements are now shaped by algorithms that decide what people see and when they see it. These algorithms prioritize engagement, often promoting content that provokes stronger emotional reactions rather than balanced analysis.
As a result, echo chambers form, online spaces where people are repeatedly exposed to opinions that mirror their own, reinforcing biases and reducing openness to differing perspectives. This has contributed to increasing polarization in societies across the world. Moreover, the competition for attention has blurred the line between information and entertainment, leading to the rise of sensationalism even in serious public discourse. The credibility of expertise too has been undermined, as opinions from unverified sources are often placed on the same footing as evidence-based knowledge.
In response, several governments and technology companies are exploring ways to promote digital literacy, enhance transparency in algorithms, and strengthen fact-checking collaborations. Ultimately, the challenge lies in balancing the openness of digital spaces with mechanisms that ensure responsibility and trustworthiness in public communication.- AILET BALLB (Hons.) - 2026
- English
- Reading Comprehension
- I have still to be brother to a Prince, though I once came near to kinship with what might have been a veritable King, and was promised the reversion of a Kingdom, army, law-courts, revenue, and policy, all complete. But, today, I greatly fear that my King is dead, and if I want a crown I must go and hunt it for myself. The beginning of everything was in a railway train upon the road to Mhow from Ajmir. There had been a deficit in the Budget, which necessitated travelling, not Second class, which is only half as dear as First class, but by Intermediate, which is very awful indeed. There are no cushions in the Intermediate class, and the population is either Intermediate, which is Eurasian, or native, which for a long night journey is nasty; or Loafer, which is amusing though intoxicated. Intermediates do not patronize refreshment rooms. They carry their food in bundles and pots, and buy sweets from the native sweet meat sellers, and drink the roadside water. That is why in the hot weather Intermediates are taken out of the carriages dead, and in all weathers are most properly looked down upon.
My particular Intermediate happened to be empty till I reached Nasirabad, when a huge gentleman in shirt sleeves entered, and following the custom of Intermediates, passed the time of day. He was a wanderer and a vagabond like myself, but with an educated taste for alcohol. He told daring tales of things he had seen and done, of out-of-the-way corners of the Empire into which he had penetrated, and of adventures in which he risked his life for a few days’ food. “If India was filled with men like you and me, not knowing more than the crows where they’d get their next day’s rations, it isn’t seventy millions of revenue the land would be paying, it’s seven hundred millions,” said he; and as I looked at his mouth and chin I was disposed to agree with him.
We talked politics, the politics of Loaferdom that sees things from the underside where the lath and plaster is not smoothed off, and we talked postal arrangements because my friend wanted to send a telegram back from the next station to Ajmir, which is the turning off place from the Bombay to the Mhow line as you travel westward. He had the air of one who had seen strange countries and stranger men, yet bore himself without vanity. There was a restless light in his eyes, the sort that belongs to men who have lived too long without a fixed purpose. When he spoke of the Empire, it was not with loyalty nor with bitterness, but with the detached amusement of one who has played his part and lost interest in the game. His laughter came easily, though it seemed to echo from some remembered hardship. It struck me then that his stories were less of adventure than of survival.- AILET BALLB (Hons.) - 2026
- English
- Reading Comprehension
Democracy, often hailed as the most equitable form of governance, is a system where power ultimately rests in the hands of the people. The word derives from the Greek words ”demos” meaning people and ”kratos” meaning power or rule. Democracy aims to provide equal political participation and protect the individual freedoms of all citizens. However, while the idea of democracy is simple, its practice is frequently complex and fraught with challenges. At its core, democracy functions on the principle of majority rule, yet it simultaneously guarantees the protection of minority rights.
This balance ensures that while the majority has the power to make decisions through voting, the fundamental rights of minorities are not trampled upon. Such a system requires consistent vigilance and respect for the rule of law. Without these, democracies can devolve into majoritarian tyranny or authoritarianism. The practice of democracy is not merely limited to voting in elections. It encompasses freedom of speech, an independent judiciary, free press, and protection of individual rights. These elements together create a political environment where citizens can express dissent, hold leaders accountable, and participate actively in decision-making. When any component is weakened, the democratic process becomes vulnerable.
In recent times, democratic societies worldwide have grappled with new challenges. The rise of misinformation and fake news has eroded public trust in institutions and polarized societies. Social media platforms, meant to facilitate communication, have sometimes amplified divisive narratives and falsehoods. This has resulted in voter manipulation and a growing skepticism toward democratic processes. Literacy in media and critical thinking is increasingly vital to safeguard democracy from such threats. Economic inequality poses another significant challenge. While democracy promises equal rights politically, vast disparities in wealth and opportunity undermine this ideal.
This phenomenon raises questions about whether democracy is achievable without addressing socioeconomic inequalities. Furthermore, the involvement of citizens is crucial. Democracy requires that people are informed, engaged, and willing to participate beyond casting votes. Civic education and awareness campaigns play an essential role in nurturing responsible citizenship. Apathy or disengagement weakens the democratic fabric, opening avenues for corruption and other dangers to the system. In conclusion, democracy thrives on the collective responsibility of governments and citizens to protect its pillars and ensure inclusive, fair governance.- AILET BALLB (Hons.) - 2026
- English
- Reading Comprehension
The Rule of Law
by Tom BinghamJustice: What’s the Right Thing to Do?
by Michael J. SandelLetters to a Law Student
by Nicholas J. McBrideIn The Rule of Law, former Lord Chief Justice Tom Bingham explores how the principle of legality underpins modern democratic life. He defines the rule of law as more than just adherence to formal rules; it is the assurance that power is exercised within clear, fair, and publicly known boundaries.
Bingham distills the concept into eight principles, including equality before the law, access to justice, and respect for fundamental human rights. Drawing on cases and historical examples, he warns that national security and administrative efficiency must never override the rights of individuals.
The book bridges legal philosophy and practice, arguing that law must be both predictable and humane. For Bingham, the rule of law represents a moral ideal, one that sustains public trust in justice and curbs arbitrary governance.Michael Sandel’s Justice: What’s the Right Thing to Do? examines moral reasoning in law and politics. Through examples like price gouging, affirmative action, and taxation, Sandel invites readers to explore competing notions of fairness.
He engages with philosophical traditions such as utilitarianism, libertarianism, and Rawlsian egalitarianism, showing that questions of justice cannot be separated from questions of virtue and the common good.
Sandel rejects the idea of a morally “neutral” legal system, arguing that public deliberation about values is essential to democracy. Ultimately, he argues that a just society is one that cultivates civic responsibility, not merely individual rights.Nicholas McBride’s Letters to a Law Student is a practical and reflective guide for aspiring lawyers. Written as a series of letters to a student beginning law school, it explores what legal study truly involves.
This includes mastering case analysis, understanding precedents, and developing critical reasoning. McBride distinguishes between knowing the law and thinking like a lawyer, the latter requiring analytical discipline and ethical awareness.
He emphasizes that good lawyers combine intellectual rigor with moral judgment and clarity of expression. Beyond academic success, the book urges students to reflect on law’s purpose, balancing order, justice, and compassion in human affairs.- AILET BALLB (Hons.) - 2026
- English
- Reading Comprehension
Urban gardening has become increasingly popular as a means to address food security, sustainability, and mental well-being in cities. By growing their own fruits, vegetables, and herbs, individuals can reduce their reliance on commercial supply chains that contribute to extensive transportation, energy consumption, and synthetic chemical use. In addition to providing fresh, nutritious food, urban gardening also contributes to environmental sustainability by mitigating urban heat island effects, improving air quality, and managing water runoff. Furthermore, it offers psychological benefits, including reduced stress, improved mood, and a sense of accomplishment. Despite its many benefits, urban gardening faces challenges like space limitations, poor soil quality, and inadequate sunlight, which gardeners overcome using innovative techniques such as vertical farming and hydroponics.
- AILET BALLB (Hons.) - 2026
- English
- Reading Comprehension
Questions Asked in CAT exam
- A value of $c$ for which the minimum value of $f(x) = x^2 - 4cx + 8c$ is greater than the maximum value of $g(x) = -x^2 + 3cx - 2c$, is:
- CAT - 2025
- Linear & Quadratic Equations
- In a $\triangle ABC$, points $D$ and $E$ are on the sides $BC$ and $AC$, respectively. $BE$ and $AD$ intersect at point $T$ such that $AD : AT = 4 : 3$, and $BE : BT = 5 : 4$. Point $F$ lies on $AC$ such that $DF$ is parallel to $BE$. Then, $BD : CD$ is:
- CAT - 2025
- Geometry
- In the sequence 1, 3, 5, 7, ..., k, ..., 57, the sum of the numbers up to k, excluding k, is equal to the sum of the numbers from k up to 57, also excluding k. What is k?
- CAT - 2025
- Arithmetic Progression
- Find the number of integer pairs (x, y) that satisfy the following system of inequalities:
\[ \begin{cases} x \geq y \geq 3 \\ x + y \leq 14 \end{cases} \]
- CAT - 2025
- Linear & Quadratic Equations
- An item with a cost price of Rs.1650 is sold at a certain discount on a fixed marked price to earn a profit of 20% on the cost price. If the discount was doubled, the profit would have been Rs.110. The rate of discount, in percentage, at which the profit percentage would be equal to the rate of discount, is nearest to:
- CAT - 2025
- Profit and Loss