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Subject: Science and Technology

  • Technology and Innovation Report, 2025

    Why in the News?

    The Technology and Innovation Report, 2025 was recently issued by United Nations Conference on Trade and Development (UNCTAD).

    About the Technology and Innovation Report

    • The report is released by the UN Conference on Trade and Development (UNCTAD).
    • It addresses critical issues related to science, technology, and innovation, with a particular focus on developing countries. The report emphasizes policy-relevant analysis and conclusions.
    • The theme for the 2025 edition is “Inclusive Artificial Intelligence for Development.”

    Key Highlights of the Report:

    • Global Highlights:
      • Developed countries lead in technology preparedness, but nations like China, India, and Brazil outperform their income levels.
      • AI market projected to reach USD 4.8 trillion by 2033, fuelling global digital transformation.
      • 100 companies, mostly in the U.S. and China, account for 40% of global corporate R&D spending.
      • AI will affect 40% of jobs globally, raising concerns over automation and job displacement.
      • U.S. leads in AI investment with USD 67 billion, followed by China (USD 7.8 billion) and India (USD 1.4 billion).
      • AI Governance Gap: 118 countries, mainly from the Global South, are absent from global AI governance discussions.
    • Indian Prospects:
      • India ranks 36th in the Readiness for Frontier Technologies Index in 2024, up from 48th in 2022. It ranks 10th globally with USD 1.4 billion in AI investments.
      • India has a talent pool of 13 million AI developers, contributing significantly to open-source platforms like GitHub.
      • The India AI Mission (2024) focuses on AI innovation through collaborations with the private sector and academia.
      • India leads in nanotechnology and has AI excellence centres like IIT Hyderabad and IIT Kharagpur.
    [UPSC 2019] The Global Competitiveness Report is published by the:

    (a) International Monetary Fund (b) United Nations Conference on Trade and Development (c) World Economic Forum (d) World bank

     

  • Majorana 1 Chip and the Pursuit of Quantum Computing

    Why in the News?

    In December 2024, Microsoft introduced its quantum computing chip, Majorana 1, designed to solve industrial-scale problems by utilizing the properties of Majorana particles for practical quantum computing.

    About Majorana 1 Chip and the Science Behind

    • Microsoft introduced its Majorana 1 quantum computing chip, designed to solve large-scale problems using quantum computing.
    • This chip is named after Majorana particles, which have unique properties in particle physics.
    • Majorana particles are special because they are their own anti-particles.
    • This means that when two Majorana particles meet, they destroy each other and release energy.
    • This property is different from most particles, like electrons, which have separate anti-particles (for example, the electron’s anti-particle is the positron).
    • Why Majorana Particles Matter for Quantum Computing?
      • This unique property could make Majorana particles useful in quantum computing.
      • They could help make quantum bits (qubits) more stable, which is important for improving quantum computers.
      • Using Majorana particles may also help in topological quantum computing, which makes qubits less affected by external disturbances, making them more reliable.

    Beta Decay and Neutrinoless Double Beta Decay (0vßß):

    • Beta decay happens when an unstable atomic nucleus releases energy. In this process, a neutron in the nucleus turns into a proton, and an electron and anti-neutrino are emitted. There are two types of beta decay:
    1. Beta-minus decay: A neutron becomes a proton, releasing an electron and an anti-neutrino.
    2. Beta-plus decay: A proton turns into a neutron, releasing a positron and a neutrino.
    • What is Neutrinoless Double Beta Decay (0vßß)? Neutrinoless double beta decay is a rare event where two electrons are emitted instead of the usual electron and anti-neutrino. This suggests that neutrinos and anti-neutrinos might be the same particle, known as Majorana particles.
      • If scientists observe this type of decay, it will prove that neutrinos are Majorana particles and help measure their mass.
      • This discovery would improve our understanding of particle physics.

    AMoRE Experiment:

    • The AMoRE experiment is being conducted in South Korea to detect this rare 0vßß decay.
    • The experiment uses molybdenum-100 (Mo-100), which is known to undergo double beta decay. The team is measuring the energy differences in electron emissions to detect the 0vßß decay.
    • While no evidence has been found yet, the experiment continues to improve its sensitivity by using 100 kg of Mo-100 for more accurate measurements.

    Scientific Significance:

    • The search for 0vßß and studying Majorana particles could help answer important questions about the mass of neutrinos and improve our understanding of particle physics.
    • Learning more about neutrinos is key to both advancing quantum computing and understanding particle physics.
    [UPSC 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

     

  • Fram2 Polar-Orbiting Mission

    Why in the News?

    SpaceX has launched the Fram2 mission, sending four private astronauts on a groundbreaking journey to orbit Earth from pole to pole, marking a major milestone in space tourism.

    About the Fram2 Polar-Orbiting Mission

    • The Fram2 mission is a spaceflight undertaken by SpaceX, featuring a crew of four private astronauts.
    • The mission is named after the Fram ship, a historical vessel used in early 20th-century polar expeditions.
    • Unlike traditional space missions, Fram2 is designed to fly from pole to pole, completing an orbital journey around Earth that no human has attempted before.
    • Its goal is to fly over both the North and South Poles, providing an unprecedented opportunity to observe these regions from low-Earth orbit.
    • The mission will involve a series of scientific experiments focused on spaceflight and the effects of microgravity on the human body.
    • The mission is scheduled to last between three to five days, with the astronauts aboard the Crew Dragon spacecraft completing each orbit in about 46 minutes.

    Features and Significance:

    • Unique Orbital Path:
      • Unlike traditional orbits closer to the equator, the Fram2 mission follows a polar trajectory, covering Earth’s poles.
      • This approach requires more fuel and presents a unique challenge in terms of mission logistics, making the Fram2 flight one of the most ambitious private space missions to date.
    • Scientific Research:
      • The crew will participate in 22 experiments, including studies on microgravity’s impact on the human body, the effects of spaceflight on muscle loss and bone density, and X-ray imaging in space.
      • Additionally, the mission will gather data crucial for climate change research by focusing on Earth’s polar regions, which play a vital role in understanding global environmental changes.
    • Climate Change Research:
      • As part of the mission, astronauts will be able to film and observe Earth’s polar regions, contributing valuable data to climate science.
    [UPSC 2010] Consider the following statements:

    The Satellite Oceansat-2 launched by India helps in

    1. estimating the water vapour content in the atmosphere.

    2. predicting the onset of monsoons.

    3. monitoring the pollution of coastal waters.

    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

     

  • IISc’s Bacteria-Based Technique for Lunar Habitat Construction

    Why in the News?

    Researchers at the Indian Institute of Science (IISc.) have developed a bacteria-based technique to repair bricks used in lunar habitats, designed to withstand the harsh conditions of the moon’s environment.

    About the Bacterial Brick:

    • The bacterial brick is an innovative material designed for building durable, eco-friendly structures in lunar habitats.
    • It is created using lunar soil simulants combined with Sporosarcina pasteurii, a bacteria that binds soil particles together, forming a solid material suitable for construction on the moon.
    • How is it made?
      • The bacteria Sporosarcina pasteurii converts urea and calcium into calcium carbonate crystals, which bind soil particles together to create a brick-like substance.
      • The process is further enhanced with guar gum, which serves as a natural adhesive, making it a low-cost, eco-friendly alternative to energy-intensive cement-based manufacturing.
      • The researchers also explored sintering, where a mixture of soil simulants and polyvinyl alcohol is heated to high temperatures, creating stronger, more pressure-resistant bricks.

    Significance for Lunar Surface Conditions:

    • The moon’s surface experiences extreme temperature fluctuations, ranging from 121°C to -133°C, causing bricks to crack and become brittle.
    • A bacteria-based repair technique using Sporosarcina pasteurii helps address these cracks.
      • When mixed with lunar soil simulant and guar gum, the bacteria effectively adhere to cracks, improving durability and enabling the bricks to withstand temperatures from 100°C to 175°C.
    • This approach offers a sustainable solution by allowing on-site construction with local lunar materials, reducing the need for Earth-based materials.
      • It ensures long-term structural integrity for lunar habitats, contributing to the sustainability of space missions.
    [UPSC 2011] Microbial fuel cells are considered a source of sustainable energy. Why?

    1. They use living organisms as catalysts (often including bacteria) to generate electricity from certain substrates.

    2. They use a variety of inorganic materials as substrates.

    3. They can be installed in wastewater treatment plants to cleanse water and produce electricity.

    (a) 1 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3

     

  • Why the Parker Solar Probe is trying to ‘touch’ the Sun?

    Why in the News?

    The Parker Solar Probe made history on December 24, 2024, by coming within 6.1 million kilometers of the Sun’s surface, marking the closest approach ever by a spacecraft.

    Why the Parker Solar Probe is trying to ‘touch’ the Sun?

    About Parker Solar Probe

    • The Parker Solar Probe, launched in August 2018, is a car-sized robotic spacecraft named after Eugene Newman Parker, an American solar astrophysicist.
    • It is the first NASA mission named after a living researcher, and its mission is humanity’s first to explore within 3.8 million miles of the Sun’s corona.
    • The spacecraft is equipped with an advanced carbon-composite heat shield capable of withstanding temperatures up to 1,370°C.
    • This shield, which weighs only 73 kg, is designed to protect the probe from the Sun’s intense heat.
      • The probe’s instruments remain at a manageable 29°C due to the shield’s protection.
    • The primary goals are:
      • Approach the Sun: The probe aims to get as close as 6.5 million kilometers to study the Sun’s energy flow, solar corona heating, and the sources of solar wind.
      • Explore Solar Wind: Investigate the origins and behaviour of solar wind, the high-speed streams of charged particles that impact space weather.
      • Study Solar Corona: Delve into the mystery of why the Sun’s corona is 200 times hotter than its surface.
      • Investigate Plasma and Magnetic Fields: Study the structure and dynamics of plasma and magnetic fields at the sources of solar wind.
    • The Parker Solar Probe is equipped with four primary instruments:
      • FIELDS: Measures the electric and magnetic fields of the Sun’s atmosphere.
      • ISoIS: Observes energetic particles that lead to solar storms.
      • SWEAP: Records the properties of solar wind particles.
      • WISPR: Takes images of the solar corona.
      • Faraday Cup: Measures ion and electron density in the solar wind.

    Impact of the Mission on Solar Science

    • Understanding Solar Wind: The mission provides crucial data on the origins and behavior of solar wind, enhancing predictions of space weather and its impact on Earth.
    • Solving the Solar Corona Mystery: The probe’s findings suggest that Alfvén waves, plasma oscillations, may be the key mechanism responsible for the heating of the Sun’s corona, addressing a long-standing puzzle in solar physics.
    • New Discoveries on Space Dust: The probe’s discovery of dust-free pockets near the Sun challenges previous assumptions about the interaction of space dust with solar energy, offering new insights into solar dynamics.
    • Space Weather and Solar Flares: By monitoring the Sun’s activity, the probe aids in understanding solar flares and coronal mass ejections (CMEs), helping to mitigate the effects of space weather on Earth’s satellites and infrastructure.
    • Advancement in Solar Exploration Technology: The mission’s success in utilizing advanced heat shields and high-speed space travel techniques paves the way for future solar missions and deeper exploration of stellar physics.
    [UPSC 2022] If a major solar storm (solar flare) reaches the Earth, which of the following are the possible effects on the Earth?

    1.        GPS and navigation systems could fail.

    2.        Tsunamis could occur at equatorial regions.

    3.        Power grids could be damaged.

    4.        Intense auroras could occur over much of the Earth.

    5.        Forest fires could take place over much of the planet.

    6.        Orbits of the satellites could be disturbed.

    7.        Shortwave radio communication of the aircraft flying over polar regions could be interrupted.

    Select the correct answer using the code given below:

    (a) 1, 2, 4 and 5 only

    (b) 2, 3, 5, 6 and 7 only

    (c) 1, 3, 4, 6 and 7 only

    (d) 1, 2, 3, 4, 5, 6 and 7

     

  • GAIA Mission

    Why in the News?

    The European Space Agency (ESA) officially shut down its Global Astrometric Interferometer for Astrophysics (GAIA) Mission, which had been operational for over a decade.

    About the GAIA Mission

    • It was launched in December 2013 with the primary goal to create the most accurate three-dimensional map of the Milky Way galaxy.
    • It sought to measure the positions, distances, and movements of stars and other celestial bodies.
    • Gaia was designed for astrometry, focusing on precise measurements of celestial object locations and motions.
    • Positioned at Lagrange Point 2 (L2), 1.5 million kilometres behind Earth (as viewed from the Sun), Gaia was able to observe the universe without interference from Earth, the Sun, or the Moon.
    • Gaia was equipped with two telescopes and a camera with nearly 1 billion pixels, the largest camera ever sent to space. Key instruments include:
    1. Astrometer: Measured the location and motion of stars.
    2. Photometer: Measured brightness of celestial objects.
    3. Spectrometer: Analyzed the composition and movement of stars.
    • Discoveries and Achievements:
      • Gaia mapped the Milky Way in 3D, uncovering its shape, structure, and movement. It also detected warping and wobbling in the galaxy.
      • Gaia identified new types of black holes by observing their gravitational effects and tracked over 150,000 asteroids, contributing insights on their orbits and future impacts on Earth.
      • Additionally, it provided new understanding of stellar evolution and the formation of stars, including the Sun.
    • Gaia accumulated over 3 trillion observations, contributing to more than 13,000 scientific papers, revolutionizing knowledge about the Milky Way, the solar system, and galactic dynamics.

    Why is Gaia being Decommissioned?

    • After more than a decade of operations, the Gaia mission reached the end of its operational lifespan, making it unsustainable to continue its activities.
    • After over 10 years in space, Gaia’s technology showed signs of wear, and continuing operations became unfeasible.
    • On March 27, 2025, Gaia was successfully passivated, draining all internal energy sources. This means it can no longer be restarted or resumed for future operations.
    [UPSC 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

     

  • [27th March 2025] The Hindu Op-ed: The issue is about the ‘quality’ of India’s publications 

    PYQ Relevance:

    Question: “Although, India is second in the world to file patents, still only a few have been commercialized. Explain the reasons behind this less commercialization.” (UPSC 2024)

    Reason: This question looks at how useful India’s intellectual work is. It focuses on patents instead of research papers but raises a similar point—whether filing many patents leads to real-world applications. Here, commercialization means using intellectual property, which also reflects the quality of India’s research output.

    Mentor’s Comment: At a National Science Day event in February 2025, the Union Science Minister stated that India could surpass the U.S. in scientific publications by 2029. China leads with 8,98,949 papers, followed by the U.S. (4,57,335) and India (2,07,390). He emphasized the need for large-scale investments in education and R&D to match China’s long-term scientific growth.

    Today’s editorial analyzes India’s scientific publications and compares them with developed countries like the USA and China. This analysis is useful for writing answers in GS Paper 3 (UPSC Mains)

    _

    Let’s learn!

    Why in the News?

    Science officials should focus on improving the quality of India’s research publications instead of just being satisfied with the increasing number of papers.

    What are the quality issues in Indian publications? 

    • High Presence in Predatory Journals: Many Indian researchers publish in low-quality or predatory journals that lack proper peer review. Example: A 2018 study found that 35% of papers in predatory journals came from India, reducing credibility.
    • Low Citation Impact: Indian research papers often have fewer citations, indicating limited global influence and impact. Example: While China contributes heavily to high-impact journals like Nature and Science, India lags in such publications.
    • Plagiarism & Research Misconduct: Cases of plagiarism, data fabrication, and duplicate publications undermine research integrity. Example: In 2019, over 1,000 Indian research papers were retracted due to ethical violations.
    • Weak Industry-Academia Linkages: Research often lacks practical applications, with minimal collaboration between academia and industry. Example: Unlike China, where AI and 5G research directly benefit Huawei and Tencent, India’s industry-research link is weak.
    • Limited Breakthrough Research in Frontier Technologies: India lags in deep-tech areas like AI, quantum computing, and biotechnology due to inadequate funding and infrastructure. Example: While Google (USA) and Alibaba (China) lead in quantum computing, India mostly imports technology.

    What are the key factors contributing to China’s dominance in scientific research output compared to India?

    Key Factor China’s Strength Example
    Heavy Investment in R&D 2.4% of GDP spent on R&D, significantly higher than India’s 0.67% Medium-to-Long-Term Plan (2006-2020) led to advancements in AI, biotechnology, and materials science.
    Strong University and Institutional Support Massive government funding and autonomy for research institutions Tsinghua University, Peking University, and CAS contribute thousands of high-impact research papers annually.
    Focus on High-Quality Publications Researchers publish extensively in top journals like Nature, Science, and JACS CAS alone contributed 444 papers in JACS (2017–2024), while all CSIR labs in India contributed only 29.
    Strategic Talent Development and Global Collaboration Attracts global talent and fosters domestic researchers through international partnerships Thousand Talents Plan recruited top global scientists, boosting innovation.
    Industry-Academia Linkages and Patent Filing Strong collaboration between research institutions and industries, leading to high patent filings China dominates AI, quantum computing, and 5G, with companies like Huawei, Baidu, and Tencent integrating research into industry applications.

    How does India’s research spending compare to other advanced nations, and what are the effects?

    • Low R&D Expenditure as % of GDP: India spends ~0.67% of GDP on R&D, significantly lower than USA (3.4%), China (2.4%), Germany (3.1%), South Korea (4.8%), and Israel (5.6%). This leads to slower technological advancements and reduced global competitiveness. Example: India lags behind in semiconductor manufacturing, relying on imports instead of domestic production like China, Taiwan, and the US.
    • Dominance of Government Funding: Government funds ~56% of R&D in India, whereas in advanced nations, private sector contributes 70-80%. The limited commercialization of research and weaker industry-academia collaboration hinder innovation.Example: ISRO’s space research is globally recognized, but private sector participation in space technology is still nascent compared to SpaceX (USA) or CASC (China).
    • Lower Patent Filings & Innovation Output: India’s patent filings are much lower than leading economies. In 2023, India filed ~58,502 patents, whereas China filed 1.58 million. The slow innovation cycle increases reliance on foreign technologies. Example: China dominates 5G patents (~40%), while India relies on foreign telecom firms like Nokia and Ericsson for 5G deployment.
    • Brain Drain and Researcher Exodus: Indian researchers often migrate abroad due to limited funding, better salaries, and superior research infrastructure. The talent loss weakens India’s domestic research ecosystem. Example: Many IIT and IISc graduates move to the US, UK, or Europe for research positions in top institutions like MIT, Stanford, or Oxford.
    • Limited Breakthroughs in Deep-Tech & Frontier Research: India has limited presence in deep-tech areas like AI, quantum computing, and biotechnology, where the US, China, and EU invest heavily. Dependence on foreign companies for cutting-edge technology continues to grow. Example: India imports most quantum computing hardware, while Google (US) and Alibaba (China) lead the sector.

    What are the major ethical concerns in Indian research, and where does India stand in research integrity?

    • Plagiarism & Research Misconduct: Cases of plagiarism, data fabrication, and duplicate publications are prevalent in Indian academia. Weak enforcement of ethical guidelines leads to compromised research integrity. Example: In 2019, a major controversy arose when over 1,000 Indian research papers were retracted due to ethical violations.
    • Predatory Journals & Substandard Publications: Many Indian researchers publish in low-quality or predatory journals due to pressure for academic promotions. This dilutes the credibility of Indian research on the global stage. Example: A 2018 study found that over 35% of papers in predatory journals were from India, raising concerns about academic standards.
    • Lack of Strong Ethical Oversight & Whistleblower Protection: Institutional Ethics Committees (IECs) often lack independence and fail to take strict action against misconduct. Whistleblowers face retaliation, discouraging the reporting of unethical practices. Example: In cases like the AIIMS ethics review controversies, concerns were raised over conflicts of interest and leniency towards fraudulent research.

    What are the steps taken by the Indian government? 

    • Increased R&D Funding & Policy Initiatives: The government has launched schemes like National Research Foundation (NRF) with a ₹50,000 crore corpus to boost R&D across sectors. Atal Innovation Mission (AIM) promotes startups, research incubation, and industry-academia collaboration. Example: IMPRINT (Impacting Research Innovation and Technology) supports research in key areas like healthcare, AI, and advanced materials.
    • Strengthening Research Ethics & Quality Publications: UGC-CARE List was introduced to ensure publication in quality journals and curb predatory publishing. Draft National Policy on Research and Development (2023) aims to streamline ethical research guidelines. Example: AIIMS and IITs have implemented stricter plagiarism checks and ethical review mechanisms.
    • Boosting Deep-Tech & Patent Ecosystem: The National Quantum Mission (NQM) aims to position India as a global leader in quantum computing and communication. Simplified patent filing processes and incentives under Start-up India & Make in India encourage innovation. Example: India’s patent filing growth (58,502 in 2023), with initiatives like Mission on Cyber-Physical Systems (CPS) to develop AI, robotics, and IoT.

    Way forward: 

    • Increase R&D Investment & Industry Collaboration: Raise India’s R&D spending to at least 2% of GDP, with a greater role for private sector funding. Strengthen industry-academia linkages to boost innovation and commercialization, similar to China’s model.
    • Enhance Research Integrity & Quality Standards: Implement stricter regulations to curb plagiarism, predatory publishing, and unethical practices. Strengthen peer review mechanisms, independent ethics committees, and whistleblower protections to uphold research credibility.

  • What is a Sonic Weapon?

    Why in the News?

    It is alleged that Serbian Police used a banned sonic weapon to disperse protesters in Belgrade.

    What are Sonic Weapons?

    • Sonic or acoustic weapons are devices designed to emit loud sounds over long distances, including both audible and inaudible sound waves.
    • These waves can cause pain, discomfort, or disorientation.
    • While sound amplifiers have been used for centuries, sonic weapons began being used for crowd control in the 1990s, with their first military use in Iraq in 2004.
    • Working Mechanism: Sonic weapons use modern transducers to convert energy into concentrated sound, which can be controlled in terms of frequency, level, and duration.

    Types of Sonic Weapons:

    • Long-Range Acoustic Device (LRAD):
      • Range: Up to 8,900 meters for intelligible speech.
      • Sound Level: Can reach up to 160 dB, causing pain and potential hearing damage.
    • Mosquito:
      • Target Audience: Emits high-pitched sounds painful to younger people (teenagers and those in their twenties). Adults above 30 typically cannot hear it due to age-related hearing loss.
    • Infrasonic Weapon:
      • Sound Type: Delivers inaudible low-frequency sounds that cause pain and disorientation.
      • Development: Still in early stages, with ongoing research into its full potential.

    Health Implications:

    • Short-Term exposure can cause tinnitus, headaches, nausea, and vertigo.
    • Prolonged exposure may lead to permanent hearing damage, and symptoms like tinnitus can last for days.
    PYQ:
    [UPSC 2023]     Consider the following statements regarding Agni-V and BrahMos Missiles:
    1. Agni-V is a medium-range supersonic cruise missile, and BrahMos is a solid-fuelled intercontinental ballistic missile.
    2. Both the missiles are developed under the Integrated Guided Missile Development Programme.
    Which of the statements given above is/are correct?
    (a) 1 only, (b) 2 only, (c) Both 1 and 2, (d) Neither 1 nor 2

     

  • Miller-Urey Hypothesis

    Why in the News?

    A recent study led by Stanford University chemist Richard Zare has introduced a novel perspective on the origins of life on Earth, providing an alternative to the well-known Miller-Urey hypothesis.

    Miller-Urey Hypothesis

    About the Miller-Urey Hypothesis

    • The Miller-Urey hypothesis emerged from an experiment conducted in 1952 by chemists Stanley Miller and Harold Urey.
      • It sought to simulate the conditions of early Earth to understand how life could have originated.
    • They used a mixture of water, methane, ammonia, and hydrogen, gases believed to be present in the early Earth’s atmosphere.
    • The setup also included an electric spark to simulate lightning, which they hypothesized could have played a role in the formation of organic compounds.
    • Results: The experiment successfully demonstrated that organic molecules, like amino acids, essential for life, could form when an electrical spark (simulating lightning) was applied to the gas mixture.
    • Impact and Debate:
      • The experiment was a landmark in understanding life’s chemical origins.
      • However, over time, critics argued that real lightning would have been rare and mostly occurred over open ocean, where organic compounds would have been quickly dispersed.
      • This led to the questioning of lightning as the primary trigger for life’s origins.

    Life on Earth and the Role of ‘Microlightning’ in Water Droplets

    • The Stanford study shows that when water droplets divide, they develop opposing electrical charges—larger droplets become positively charged, and smaller droplets become negatively charged.
    • When these oppositely charged droplets come close together, tiny sparks (termed micro-lightning) can leap between them, mimicking the electrical phenomena that occur in thunderstorms.
    • Experimental Evidence:
      • In the experiment, when water sprays were mixed with nitrogen, methane, carbon dioxide, and ammonia, they produced organic compounds like glycine and uracil, similar to those in the Miller-Urey experiment.
      • Microlightning from water sprays can therefore generate organic compounds, providing a plausible and common natural process for the origin of life.
    • These microlightning events could have been far more common and accessible than lightning strikes, offering an alternative mechanism for the generation of life-building organic molecules.

    PYQ:


    [UPSC 2012] Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?

    (a) Hydrogen, Oxygen, Sodium

    (b) Carbon, Hydrogen, Nitrogen

    (c) Oxygen, Calcium, Phosphorus

    (d) Carbon, Sodium, Phosphorus

     

  • World’s first ‘Supersolid’ created from Light

    Why in the News?

    In a groundbreaking achievement, Italian researchers have successfully transformed light into a supersolid for the first time in history.

    About Supersolid

    • A supersolid is a rare state of matter that behaves like both a solid and a liquid at the same time.
    • While it maintains a rigid structure, similar to a solid, it can also flow like a liquid without any internal friction.
    • How was a supersolid created?
      • Researchers made a supersolid by combining light and matter.
      • They used polaritons (a mix of light and particle pairs called excitons) to create this new state of matter.
      • When these polaritons reach their lowest energy, they form the supersolid that behaves like both a solid and a liquid.
    • Features of a Supersolid:
      • Dual Nature: A supersolid is solid in structure but can also flow like a liquid.
      • Quantum Coherence: The particles inside a supersolid work together in a special way because of quantum mechanics, creating unique behaviors.
      • Zero Viscosity: It moves without any resistance, just like a superfluid, meaning it can flow freely even though it’s solid.
      • Temperature Dependency: Supersolids only form at extremely low temperatures (close to absolute zero, or -273.15°C).

    Applications of Supersolids

    • Quantum Computing: Supersolids could help improve the performance of quantum computers, making them more stable.
    • Superconductors: They might be used to create materials that allow zero-resistance electricity, improving energy transmission.
    • Frictionless Lubricants: Supersolids could lead to frictionless lubricants, making machinery work more efficiently and last longer.
    • Fundamental Physics: Studying supersolids helps us understand quantum physics and how particles behave under extreme conditions.
    • Material Science: Supersolids could help create new materials for advanced technology, including computers, sensors, and energy storage.