💥Mains Ready By December. Smash Mains & Smash PYQ Admissions Open

GS Paper: GS3-17.Awareness in the fields of IT, Space, Computers, Robotics, Nano-technology, Bio-technology and issues relating to Intellectual Property Rights.

  • Anthropic’s Mythos AI & India’s Infrastructure Security  

    Why in the News?

    Anthropic is in high-level talks with the Indian government to safeguard Critical Information Infrastructure (CII)—including banking, energy, and telecom—against cybersecurity risks posed by its latest and most powerful AI model, Mythos.

    What is Mythos?

    Mythos is an advanced AI model developed by Anthropic that possesses “unprecedented” capabilities in identifying and exploiting software vulnerabilities.

    • Cyber-Weapon Potential: Unlike standard AI, Mythos can autonomously find deep-seated flaws in widely used operating systems and infrastructure.
    • Controlled Release: Due to its risk profile, Anthropic has withheld public release, opting instead for a “defense-first” strategy.
    • Project Glasswing: A defensive initiative by Anthropic to help major tech firms (Apple, Nvidia, etc.) and governments build AI-native shields before the model is widely deployed.

    India’s Response

    The Indian government has initiated a multi-ministerial response to mitigate potential AI-driven threats:

    • Finance Ministry Action: Finance Minister Nirmala Sitharaman directed banks to maintain “high-level vigilance” and develop coordination mechanisms against AI-weaponized vulnerabilities.
    • Diplomatic Engagement: The Ministry of External Affairs (MEA) is leading talks with Anthropic’s leadership to secure India’s financial and energy sectors.
    • Vulnerability Assessment: Indian agencies are seeking access to study the system’s risks and prepare defensive measures specifically for the financial sector.
    [2020] With the print state of development, Artificial Intelligence can effectively do which of the following? 
    1. Bring down electricity consumption in industrial units 
    2. Create meaningful short stories and songs 
    3. Disease diagnosis 
    4. Text -to -Speech Conversion 
    5. Wireless transmission of electrical energy 
    Select the correct answer using the code given below: 
    [A] 1, 2, 3 and 5 only [B] 1, 3 and 4 only [C] 2, 4 and 5 only [D] 1, 2, 3, 4 and 5
  • Haemophilia 

    Why in the News?

    • Renewed focus due to World Health Organization resolution on improving care access and awareness on World Haemophilia Day

    What is Haemophilia

    • Haemophilia is a genetic bleeding disorder
    • Caused by: Deficiency of clotting factors:
      • Factor VIII (Haemophilia A)
      • Factor IX (Haemophilia B)

    Key Characteristics

    • Blood does not clot properly
    • Leads to:
      • Prolonged bleeding
      • Internal bleeding (joints, muscles)
    • Severe cases:
      • Spontaneous bleeding episodes

    Causes and Inheritance

    • Genetic Nature Inherited as: X-linked recessive disorder
    • Affected Population: Mostly males are affected, and Females are carriers.
    • Mutation Cases: ~1/3 cases: Occur due to spontaneous mutations
    [2009] In the context of genetic disorders, consider the following: A woman suffers from colour blindness while her husband does not suffer from it. They have a son and a daughter. In this context, which one of the following statements is most probably correct? 
    (a) Both children suffer from colour blindness. 
    (b) Daughter suffers from colour blindness while son does not suffer from it. 
    (c) Both children do not suffer from colour blindness. 
    (d) Son suffers from colour blindness while daughter does not suffer from it.
  • Curiosity Rover  

    Why in the News?

    • The Curiosity Rover has detected organic molecules on Mars, strengthening evidence about the planet’s past habitability.

    What is Curiosity Rover

    • A robotic rover sent by NASA
    • Part of: Mars Science Laboratory (MSL) mission
    • Objective: Explore Mars’ surface and assess habitability

    Launch & Landing

    • Launch: November 26, 2011
    • Launch vehicle: Atlas V rocket
    • Landing: August 5, 2012

    Landing Site

    • Located in: Gale Crater
    • Explores: Mount Sharp

    Unique Landing Technology

    • Used: Sky Crane technique
    • Process:
      • Parachute descent
      • Rocket-powered hovering
      • Rover lowered gently to surface
    [2016] Consider the following statements: The Mangalyaan launched by ISRO 
    1. is also called the Mars Orbiter Mission 
    2. made India the second country to have a spacecraft orbit the Mars after USA 
    3. made India the only country to be successful in making its spacecraft orbit the Mars in its very first attempt 
    Which of the statements given above is/are correct? 
    [A] 1 only [B] 2 and 3 only [C] 1 and 3 only [D] 1, 2 and 3
  • Societies embrace gene therapy but resist genetic change in crops

    Why in the News?

    There exists a critical paradox in modern science: societies readily accept gene therapy in humans but resist genetic modification in crops, despite decades of safe usage globally. This contrast is significant because it exposes inconsistent regulatory and ethical standards. While high-risk human interventions are embraced, relatively safer agricultural innovations face opposition.

    Why do societies accept gene therapy but resist GM crops?

    The disparity in public acceptance between gene therapy and Genetically Modified (GM) crops is rooted in risk-benefit asymmetry. While both use similar biotechnological tools, they are perceived through different moral and practical lenses.

    1. The “Life-Saving” vs. “Commercial” Benefit; Risk Perception Bias: Human therapies are accepted due to direct life-saving benefits (e.g., treatments for cancer, thalassemia), while crop benefits appear indirect.
      1. Indirect Benefits (Agriculture): The benefits of GM crops, such as herbicide tolerance or slightly lower food prices, often feel indirect to the consumer. The perceived “reward” does not outweigh the “fear” of altering the food supply
    2. Ethical and “Naturalness” Framing: Society categorizes these technologies into different moral buckets:
      1. Healing vs. Enhancement: Gene therapy is framed as restorative medicine, returning a body to its “natural” healthy state.
      2. Interference with Nature: GM crops are often framed as “playing God” or “Frankenfoods.” Because eating is an intimate act of consumption, the idea of “foreign DNA” in food triggers a visceral “disgust” response that medical injections do not.
    3. Regulatory Asymmetry: Somatic gene therapy is permitted despite risks, but germline editing is banned, showing selective acceptance.
      1. Controlled Environment: Gene therapy is performed in highly regulated clinical settings on individuals.
      2. Environmental Spread: Resistance to GM crops is often fueled by the fear of uncontrolled environmental release (e.g., cross-pollination or “superweeds”), which feels like a permanent, irreversible change to the planet.
    4. Corporate Trust vs. Medical Trust
      1. The “Big Ag” Narrative: GM crops are frequently associated with large multinational corporations and patent-protected seeds, leading to concerns about food sovereignty and corporate greed.
      2. The Clinical Narrative: While pharmaceutical companies also profit, the primary face of gene therapy is the doctor or researcher “curing” a patient, which carries a higher level of institutional.

    How has genetic engineering historically shaped human survival and agriculture?

    1. Domestication Legacy: Humans have engineered plants and animals for over 10,000 years through selective breeding.
      1. Transformation: Ancestral plants like Teosinte (a wild grass with tiny, hard kernels) were transformed into modern Maize through thousands of years of human selection.
    2. Migration Impact: Movement of humans led to spread of crops, animals, and diseases, shaping ecosystems globally.
      1. The Columbian Exchange: The transfer of potatoes and maize to Europe and wheat and cattle to the Americas fundamentally changed the caloric availability and survival rates of human populations globally.
    3. Modern Agricultural Dependence: The food systems we rely on today, particularly in India, are almost entirely built on “engineered” non-native species.
      1. The Green Revolution: In the 1960s, India avoided mass famine by adopting High-Yielding Varieties (HYVs) of wheat and rice. These were semi-dwarf varieties specifically bred to respond to fertilizers and resist lodging (falling over).
      2. Non-Native Dominance: Staples like tomatoes, potatoes, and chillies, central to Indian diet and identity, are not native to the region but were successfully adapted through human-led breeding and selection.
    4. Technological Evolution: The shift from selective breeding to modern transgenics (GMOs) and gene editing (CRISPR) is a change in speed and precision, not intent:
      1. Historical: Breeding took decades and involved moving thousands of genes at once.
      2. Modern: Genetic engineering allows for the insertion or “switching off” of specific genes to provide immediate traits like Bt-resistance (pest control) or drought tolerance.

    What explains the contradiction in regulatory and societal responses?

    1. Precautionary Regulation: Agriculture faces excessive precaution, slowing adoption despite safety evidence.
      1. Agricultural Hyper-Precaution: Because food is consumed by everyone, every day, regulators demand decades of longitudinal data. This slows the adoption of crops that could survive the extreme heat mentioned in the FAO report.
      2. The “Compassionate Use” Loophole: In medicine, we allow experimental gene therapies for the terminally ill even when safety data is incomplete. The visible suffering of a patient overrides the abstract fear of the technology.
    2. Innovation Bias: Societies prefer visible breakthroughs (medicine) over incremental gains (agriculture).
      1. Invisible Gains: A crop that uses 10% less water or resists a specific pest provides an incremental benefit to a supply chain. To the consumer, the food looks and tastes the same, so they see only the “unnatural” process, not the “beneficial” result.
    3. Market Structure: The history of seed patents and the dominance of a few multinational firms have tied GM crops to “corporate greed” in the public imagination.
    4. Asymmetric Risk: People feel they must eat, but they choose medicine. When a choice feels forced (like what’s available in a grocery store), the psychological threshold for risk-taking becomes much lower.

    How has biotechnology delivered proven successes across sectors?

    1. Medical Revolutions: From Treatment to Cure: Biotechnology has shifted medicine from general chemical formulas to targeted biological interventions.
      1. Synthetic Hormones: Before biotech, insulin was extracted from the pancreases of slaughtered cows and pigs. Today, it is produced cleanly by genetically engineered bacteria, ensuring a stable, high-quality supply for millions.
      2. Biologics and Gene Therapy: Breakthroughs like CAR-T cell therapy literally reprogram a patient’s own immune cells to hunt cancer.
      3. Rapid Vaccine Response: The COVID-19 mRNA vaccines utilized synthetic biology platforms to move from a viral sequence to a functional vaccine in record time, preventing an estimated 20 million deaths globally in the first year alone.
    2. Agricultural Resilience and Productivity: Despite the perception challenges, the data shows that agricultural biotech has significantly buffered the global food supply.
      1. Bt Technology: By inserting a gene from a soil bacterium into crops like cotton and maize, plants can produce their own natural pest protection. This has reduced chemical pesticide use by over 37% and increased crop yields by 22%.
      2. Herbicide Tolerance: “Roundup Ready” crops allow for more efficient weed control and support no-till farming, which helps keep carbon in the soil rather than releasing it through plowing.
      3. Biofortification: Tools like those used in Golden Rice have the potential to deliver Vitamin A to malnourished populations, directly addressing nutritional blindness.
    3. Industrial and Synthetic Biology: Biotech is moving production from land-intensive farming to high-efficiency labs.
      1. Compound Synthesis: Artemisinin, the world’s most effective anti-malarial drug, was traditionally extracted from the sweet wormwood plant. Scientists can now produce it at scale using engineered yeast, stabilizing prices and saving lives.
      2. Sustainable Materials: Synthetic biology is being used to create lab-grown silk, leather, and even meat alternatives, reducing the environmental footprint of fashion and food.
      3. Example: COVID-19 vaccines used synthetic biology platforms, demonstrating rapid innovation capacity.
    4. Proven Impact at Scale: The scale of these successes is often underestimated:
      1. Economic Value: Since 1996, GM crops have provided an estimated $225 billion in net global farm income.
      2. Environmental Footprint: Biotech crops have reduced CO2 emissions equivalent to removing 15 million cars from the road for one year by enabling reduced tillage.

    What are the risks of overregulation in science and innovation?

    Overregulation creates a “stagnation trap” where the fear of hypothetical risks prevents the management of certain, existing crises like the extreme heat threats.

    1. Innovation Slowdown: Excessive compliance discourages bold scientific experimentation.
    2. The Innovation “Brain Drain“: When compliance becomes too costly or slow, “bold” science moves elsewhere.
    3. Widening Global Disparities: Rigid systems often create a “technology divide” between nations.
      1. Innovation Leaders vs. Laggards: Countries with agile, science-based frameworks (like the US or Brazil) capture the economic and food security benefits of biotech, while rigid regions (like the EU) often fall behind in R&D.
      2. The Dependency Paradox: Nations that ban the cultivation of GM crops often end up importing the same products for livestock feed or industrial use. This maintains the “risk” of consumption while exporting the economic “reward” to other countries.
    4. Economic Impact: Delays in adopting technologies reduce competitiveness and productivity.
      1. Opportunity Cost: The time spent in regulatory limbo is time lost in scaling solutions that could lower food prices, reduce pesticide use, or sequester more carbon.
    5. The “Sunk Cost” of Precaution: Overregulation often focuses on the risk of doing something, but ignores the risk of doing nothing. Example: Excessive precaution regarding Golden Rice contributed to decades of delay in its deployment, during which time millions of children suffered from preventable Vitamin A deficiency-related blindness.

    Can safety concerns and innovation coexist effectively?

    1. Balanced Regulation: Ensures risk management without stifling innovation.
    2. Evidence-Based Policy: Decisions based on scientific outcomes rather than perception.
    3. Adaptive Governance: Regulations evolve with technological advancements.
    4. Example: Synthetic biology regulations that allow controlled testing before scaling.

    Conclusion

    There is a fundamental inconsistency in how societies evaluate technological risk and benefit. While embracing high-risk medical innovations, resistance to agricultural biotechnology reflects perception-driven policymaking rather than evidence-based governance. Future progress requires balanced regulation that safeguards safety without undermining innovation, especially in the context of global challenges like food security and climate change.

    PYQ Relevance

    [UPSC 2019] How can biotechnology improve the living standards of farmers?

    Linkage: The PYQ directly connects to the debate on GM crops vs societal resistance, highlighting the gap between scientific potential and public acceptance. It tests understanding of biotechnology applications, regulatory challenges, and ethical concerns, core issues raised in the article.

  • TRAWL System Procurement (₹975 Cr) 

    Why in the News?

    • The Ministry of Defence India signed contracts worth ₹975 crore for procurement of TRAWL systems for tanks.

    What is the TRAWL System

    • A minefield breaching equipment fitted on tanks
    • Used to:
      • Detect and neutralize landmines
      • Create safe lanes for troop and vehicle movement

    Key Features

    • Mounted on: T-72 and T-90 tanks
    • Clears:
      • Anti-tank mines
      • Mines with proximity magnetic fuses
    • Enables: Vehicle-safe lanes in combat zones

    Developed By

    • Defence Research and Development Organisation

    Procurement Details

    • Contracts signed with:
      • Bharat Earth Movers Limited
      • Electro Pneumatics and Hydraulics India Pvt Ltd
    • Category: Buy (Indian – Indigenously Designed, Developed and Manufactured)
    [2016] Which one of the following is the best description of ‘INS Astradharini’, that was in the news recently? 
    (a) Amphibious warfare ship 
    (b) Nuclear-powered submarine 
    (c) Torpedo launch and recovery vessel 
    (d) Nuclear-powered aircraft carrier
  • Amaravati Launches India’s First Quantum Computing Testing Facility 

    Why in the News?

    • Andhra Pradesh CM N. Chandrababu Naidu launched India’s first indigenous quantum computing testing facility at SRM University.
    • The initiative strengthens India’s push under the National Quantum Mission.

    About Amaravati Quantum Facility

    • Name: Amaravati Quantum Reference Facility (AQRF)
    • Location: Amaravati, Andhra Pradesh
    • Type: Indigenous quantum testing infrastructure
    • Feature:
      • Open-access system
      • Sovereign quantum infrastructure

    Key Highlights

    • First quantum computing testing facility in India
    • Includes:
      • Amaravati 1Q system (with cryogenic cooling processor)
      • Open demonstration system for research access
    • System housed at:
      • Medha Towers, Gannavaram

    Amaravati Quantum Valley

    • Flagship initiative under National Quantum Mission
    • Aim: Develop Amaravati as a global quantum hub

    Major Features

    • Hosting IBM 133-qubit quantum computer
    • 80+ industry and academic partnerships
    • Focus areas:
      • Quantum computing
      • Quantum cloud
      • Skill development
      • Innovation ecosystem

    What is Quantum Computing

    • Uses principles of Quantum Mechanics
    • Basic unit: Qubit (instead of classical bit)
    [2022] Which one of the following is the context in which the term “qubit” is mentioned? 
    (a) Cloud Services 
    (b) Quantum Computing 
    (c) Visible Light Communication Technologies 
    (d) Wireless Communication Technologies
  • Induction vs Infrared cooktops: How electric cooking push may strain power grid

    Why in the News?

    India is witnessing a policy-driven shift from LPG-based cooking to electric cooking solutions such as induction and infrared cooktops. While this transition supports clean energy goals and reduces dependence on imported fuels, it is projected to significantly increase electricity demand.

    What is an induction cooktop and how does it work?

    An induction cooktop is an energy-efficient, fast-acting electric stovetop that uses electromagnetism to heat cookware directly rather than heating the surface itself. Copper coils beneath a glass surface create a magnetic field that induces heat within magnetic pots (like cast iron or stainless steel), making it safer and cleaner.

    How does it work?

    The process relies on a few key physical principles:

    1. Electromagnetic Field: Beneath the glass-ceramic surface lies a copper coil. When you turn the cooktop on, a high-frequency alternating current (AC) flows through this coil, creating a rapidly oscillating electromagnetic field.
    2. Eddy Currents: When you place a ferromagnetic (magnetic) pan on the surface, this magnetic field penetrates the metal of the pan. Following Faraday’s Law of Induction, it induces swirling electrical currents within the pan’s base, known as eddy currents.
    3. Joule Heating: The metal in the pan has a natural electrical resistance. As the eddy currents fight to move through this resistance, their energy is converted into thermal energy (heat).
    4. Magnetic Hysteresis: In some magnetic materials, additional heat is generated as the alternating magnetic field constantly flips the magnetic domains of the metal back and forth.

    Why does the Surface Stay Cool?

    1. The heat is generated directly inside the pan and not by the stove itself, the glass-ceramic surface remains relatively cool. 
    2. It only becomes warm through residual heat, the heat that transfers back from the hot pan to the glass.

    What is the cookware requirement?

    1. This process requires ferromagnetic materials (like cast iron or magnetic stainless steel) because they respond effectively to the magnetic field. 
    2. Materials like copper, aluminum, or glass do not have the magnetic properties needed to generate sufficient eddy currents, so they will not heat up on a standard induction stove.

    What is an infrared cooktop?

    An infrared cooktop is a flameless electric stove that uses infrared radiation to transfer heat directly to your cookware. Unlike induction models that require specific magnetic pots, infrared cooktops are compatible with any flat-bottomed cookware, including aluminium, glass, ceramic, and clay.

    How does an infrared cooktop work?

    An infrared cooktop works by converting electrical energy into heat through a high-powered heating element, which then transfers that energy directly to your cookware using light waves. 

    Step-by-Step Heating Process

    1. Electrical Activation: When turned on, electricity flows through a heating element, typically a halogen lamp or a corrugated metal coil, situated beneath a ceramic glass surface.
    2. Infrared Emission: This element heats up rapidly until it glows red-hot, emitting infrared radiation (energy-carrying waves).
    3. Heat Transfer: These invisible infrared waves pass through the glass-ceramic top and are absorbed by the base of the cookware.
    4. Molecular Friction: The absorbed energy causes the molecules in the cookware to vibrate rapidly, which generates thermal heat that cooks the food.

    Why is it different from Induction

    1. Method: While induction uses magnetic fields to “excite” molecules only in magnetic pots, infrared uses radiant heat that physically warms the surface.
    2. Cookware: Because it relies on radiation rather than magnetism, it can heat any flat-bottomed material, including aluminium, ceramic, glass, and copper.
    3. Residual Heat: Unlike induction, where the glass stays relatively cool, the surface of an infrared cooktop becomes extremely hot and stays hot for a while after the unit is turned off.

    Can electric cooking significantly increase India’s peak power demand?

    1. Demand Surge: Adds 13-27 GW to electricity demand due to widespread adoption of induction cooktops.
    2. Peak Load Pressure: Pushes India’s peak demand to around 270 GW, particularly during summer months.
    3. Time Concentration: Concentrates demand during morning and evening cooking hours, intensifying grid stress.
    4. Grid Stress Amplification: Enhances risk of localized overloads in dense urban clusters.

    Why are induction cooktops emerging as a preferred alternative?

    1. Energy Efficiency: Converts electrical energy directly into heat via electromagnetic induction, minimizing losses
    2. Cost Competitiveness: Costs around ₹3,000-4,000, making it accessible to middle-income households.
    3. Operational Safety: Eliminates open flame, reducing fire hazards compared to LPG stoves.
    4. Policy Push: Supported as a cleaner alternative under electrification and decarbonization goals.

    What are the operational challenges of induction cooking?

    1. Cookware Compatibility: Requires magnetic cookware (iron or steel), limiting usability with traditional utensils.
    2. Power Dependency: Completely dependent on electricity, making it vulnerable during outages.
    3. Grid Sensitivity: High electricity consumption during peak hours creates stress on distribution networks.
    4. Socio-economic Barriers: Adoption varies across regions due to cooking habits and affordability.

    How do infrared cooktops differ and what challenges do they pose?

    1. Technology Mechanism: Uses infrared radiation to heat vessels indirectly via a glass surface.
    2. Universal Compatibility: Works with all types of cookware, including non-magnetic utensils.
    3. Higher Energy Use: Consumes more electricity than induction cooktops for similar cooking output.
    4. Market Trend: Rising demand, with sales increasing significantly in urban markets like Amazon India.

    What are the localized impacts on power distribution infrastructure?

    1. Cluster Effect: High adoption in specific areas leads to overloading of local transformers.
    2. Distribution Constraints: Existing infrastructure not designed for synchronized high-load usage.
    3. Incremental Demand Spike: Even 3-5 GW increase during peak hours can disrupt grid balance.
    4. Infrastructure Gap: Many regions lack upgraded distribution systems to handle additional loads.

    Does electric cooking reduce dependence on LPG imports?

    1. Energy Diversification: Reduces reliance on imported LPG, especially during geopolitical disruptions.
    2. Supply Resilience: Addresses vulnerabilities exposed during West Asia conflicts.
    3. Transition Trade-off: Shifts dependency from fossil fuel imports to electricity generation capacity.
    4. Strategic Shift: Aligns with long-term electrification and renewable integration goals.

    Can India’s grid infrastructure handle the transition?

    1. Capacity Constraints: Distribution networks face limitations in handling sudden peak demand spikes.
    2. Upgrade Requirements: Requires transformer upgrades and network strengthening.
    3. Planning Gap: Current infrastructure planning not aligned with rapid electrification of cooking.
    4. Policy Coordination: Needs synchronization between energy, urban planning, and appliance adoption policies. 

    Conclusion

    India’s transition to electric cooking reflects a critical shift toward cleaner energy systems but exposes structural weaknesses in power distribution. Without parallel investments in grid infrastructure, demand management, and policy coordination, the move risks transforming an energy solution into a systemic challenge. A balanced approach integrating electrification with infrastructure readiness is essential.

    PYQ Relevance

    [UPSC 2022] Do you think India will meet 50 percent of its energy needs from renewable energy by 2030? Justify your answer. How will the shift of subsidies from fossil fuels to renewables help achieve the above objective?

    Linkage: Technologies in news are frequently asked in Prelims as direct factual questions, while in Mains they are tested through analytical themes like feasibility, challenges, and policy impact. Example: UPSC in 2021 asked “In a pressure cooker, the temperature at which the food is cooked depends mainly upon which of the following?” In Prelims. Similarly in 2024 Mains, UPSC asked: “What is the technology being employed for electronic toll collection on highways? What are its advantages and limitations? Would this transition carry any potential hazards?”. For the 2022 UPSC Mains PYQ, the electric cooking push fits this theme as it shifts demand from fossil fuels (LPG) to electricity.

  • Gaganyaan-1 Crew Module Successfully Completes Air Drop Test

    Why in the News?

    ISRO successfully conducted the Gaganyaan-1 Crew Module air drop test off the Andhra Pradesh coast, marking another step toward India’s first human spaceflight mission.

    Key Highlights

    • Test Agency: ISRO
    • Location: Bay of Bengal near Satish Dhawan Space Centre (SHAR)
    • Aircraft Used: Indian Air Force Chinook helicopter
    • Drop Height: About 3 km altitude
    • Module Weight: 5.7 tonnes (simulated crew module)
    • Recovery: Indian Navy

    What is Crew Module

    • Pressurised capsule at the top of spacecraft
    • Houses astronauts
    • Designed for safe re-entry and splashdown
    • Equipped with parachute-based landing system

    About Gaganyaan Mission

    • India’s first human spaceflight mission
    • Planned by ISRO
    • Mission Structure:
      • 3 Uncrewed missions
      • 1 Crewed mission
    [2025] Consider the following space missions: 
    1 Axiom-4 
    2 SpaDeX 
    3 Gaganyaan  
    How many of the space missions given above encourage and support microgravity research?
    (a) Only one (b) Only two (c) All the three (d) None
  • Indian Scientists Develop New Method to Measure Distances in Deep Space

    Why in the News?

    Indian astronomers, including researchers from IIT Kanpur, have developed a new technique to measure distances in space using pulsars by combining dispersion measure and scatter broadening.

    What are Pulsars?

    • Pulsars are dense, rapidly spinning neutron stars
    • Emit regular radio wave pulses
    • Act as cosmic clocks due to highly stable rotation
    • Used to detect gravitational waves and deep space phenomena

    New Measurement Method

    Scientists combined two effects:

    1. Dispersion Measure (DM)

    • Radio waves pass through ionised gas
    • Lower frequency waves arrive later
    • Used to estimate distance

    2. Scatter Broadening

    • Plasma irregularities scatter signals
    • Signals follow multiple paths
    • Causes signal stretching

    New Approach

    • Combined Dispersion + Scattering
    • Improves accuracy of distance measurement

    Study Details

    • Observed 10 pulsars
    • Region studied: Gum Nebula
    • Found Vela Pulsar located behind nebula
    • Developed improved electron distribution model

    Significance

    • More accurate deep space distance measurement
    • No strict distance limitation
    • Can be used for Fast Radio Bursts (FRBs)
    • Improves understanding of interstellar medium
    [2023] Consider the following pairs: Objects in space : Description 
    1 Cepheids : Giant clouds of dust and gas in space 
    2 Nebulae : Stars which brighten and dim periodically 
    3 Pulsars : Neutron stars that are formed when massive stars run out of fuel and collapse 
    How many of the above pairs are correctly matched? 
    (a) Only one (b) Only two (c) All three (d) None
  • Record Space Activity in 2025: ISSAR Report

    Why in the News?

    The Indian Space Situational Assessment Report (ISSAR) 2025 revealed 315 global space launches in 2025, placing 4,651 objects into orbit.

    Global Space Activity 2025

    • Total launches: 315
    • Objects placed in orbit: 4,651
    • Objects re entered atmosphere: 1,911
    • Net growth in space objects: 74.5%

    India’s Space Assets

    Satellites

    • Total Indian satellites in orbit: 86
      • Operational: 27
      • Defunct: 23
      • Decayed: 36
    • Indian satellites launched in 2025: 8

    Rocket Bodies

    • 4 rocket bodies placed in orbit
    • 12 Indian objects re entered atmosphere
    [2022] Which one of the following statements best reflects the idea behind the “Fractional Orbital Bombardment System” often talked about in media?
    (a) A hypersonic missile is launched into space to counter the asteroid approaching the Earth and explode it in space.
    (b) A spacecraft lands on another planet after making several orbital motions.
    (c) A missile is put into a stable orbit around the Earth and deorbits over a target on the Earth.
    (d) A spacecraft moves along a comet with the same speed and places a probe on its surface.