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Subject: Science and Technology

  • NASA-ISRO NISAR Mission Prepares for Launch

    nisar

    Central Idea

    • The NASA-ISRO Synthetic Aperture Radar (NISAR) mission, a collaborative effort between NASA and ISRO, is on track for its scheduled launch in the first quarter of 2024.

    About the NISAR Mission

    • Collaboration: NISAR is a Low Earth Orbit observatory developed jointly by NASA and ISRO, highlighting international collaboration in space exploration.
    • Launch Vehicle: The mission is set to launch from the Satish Dhawan Space Centre in Sriharikota onboard ISRO’s GSLV Mark-II launch vehicle.
    • Data Utility: NISAR data will offer unprecedented detail and assist researchers in various ways, including monitoring volcanic activity, tracking groundwater use effects, measuring ice sheet melt rates, and observing changes in global vegetation distribution.
    • Mission Duration: The $1.5-billion NISAR mission has a planned mission life of three years and will survey Earth’s land and ice-covered surfaces every 12 days following a 90-day commissioning period.

    Advanced SAR Technology

    • Dual-Band SAR: NISAR carries L and S dual-band Synthetic Aperture Radar (SAR) using the Sweep SAR technique, providing both wide coverage and high-resolution data.
    • Observatory Structure: The SAR payloads are mounted on the Integrated Radar Instrument Structure (IRIS) along with the spacecraft bus, forming an observatory.
    • Contributions: NASA’s Jet Propulsion Laboratory (JPL) provides the L-band SAR and several key components, while ISRO’s U R Rao Satellite Centre contributes the spacecraft bus, S-band SAR electronics, launch vehicle, and mission operations.

    Key milestones achieved

    • Thermal Vacuum Testing: The thermal vacuum testing, a critical system-level test, was successfully completed in Bengaluru. This test ensures that the spacecraft can operate effectively under extreme temperature conditions.
    • EMI and EMC Testing: Electromagnetic interference (EMI) and electromagnetic compatibility (EMC) testing have also been successfully accomplished.
    • Upcoming Vibration Tests: The next phase involves conducting vibration tests to simulate the harsh launch environment. This test will subject the satellite to intense vibrations while mimicking the conditions of a rocket launch.

  • How does an Electric Battery work?

    battery

    Central Idea

    • Electric batteries have become an integral part of modern life, enabling the widespread use of motorization and wireless technology.
    • These devices store and release electrical energy, acquired by converting other forms of energy, primarily through chemical reactions.

    Historical Roots of Electric Batteries

    • Galvani’s Experiment: In 1780, Luigi Galvani conducted an experiment involving two metal plates and a frog’s leg, marking an early exploration of electricity’s effects on biological systems.
    • Volta’s Voltaic Pile: Alessandro Volta’s voltaic pile in 1800 consisted of alternating copper and zinc plates separated by electrolyte-soaked paper. It produced a steady current but lacked a comprehensive explanation.
    • John Daniel’s Innovation: British chemist John Daniel improved on Volta’s design with a more efficient cell that generated electric current for extended periods.
    • Faraday’s Insights: In the early 19th century, Michael Faraday elucidated the principles of electrochemical cells, including naming components like anode, cathode, and electrolyte.

    Understanding Electric Batteries

    • Voltaic Cells: Electric batteries, also known as voltaic or galvanic cells, utilize redox reactions to produce an electric current. They consist of two half-cells, each with a metal electrode immersed in an electrolyte of the same metal.
    • Electron Transfer: In one half-cell, metal ions dissolve into the electrolyte, releasing electrons. In the other half-cell, the reverse occurs, as metal ions deposit onto the electrode and require electrons.
    • External Circuit: A wire connects the two electrodes, allowing electron flow from the anode to the cathode. A salt bridge connects the two electrolytes, enabling ion exchange.
    • Components: Key components include the cathode (positive electrode), anode (negative electrode), and the electrolyte. The source voltage and terminal voltage are important concepts.
    • Source Voltage: It represents the energy imparted to electrons and is equal to the terminal voltage in ideal conditions.
    • Issues: Corrosion is a common issue in electrochemical cells, caused by factors like moisture and galvanic corrosion.

    Types of Batteries

    • Lithium-Ion (Li-ion) Batteries: Li-ion batteries are rechargeable and have revolutionized technology. They consist of a cathode, anode, and an electrolyte. During discharge, lithium ions move between electrodes, facilitating energy storage.
    • Electric Vehicle (EV) Batteries: EV batteries, such as those used in Tesla’s Model S, are composed of numerous Li-ion cells and are critical for powering electric vehicles.
    • Hydrogen Fuel Cells: Hydrogen fuel cells are gaining interest, especially in the context of green energy. They use hydrogen as a fuel source and produce electricity through a chemical reaction with oxygen, emitting water as a byproduct.

    Future Prospects and Significance

    • Ongoing Research: Li-ion batteries and hydrogen fuel cells continue to be areas of extensive research, with diverse configurations and advantages.
    • Hydrogen Economy: Hydrogen fuel cells are expected to play a pivotal role in the emerging hydrogen economy, and countries like India are investing in green hydrogen production.

    Conclusion

    • Electric batteries, rooted in the principles of electrochemistry, have undergone significant evolution, transforming the way we live and utilize energy.
    • Their development and improvement remain central to advancing convenience and sustainability in industrialized societies, shaping the future of technology and transportation.

  • Euclid Space Telescope unveils mysteries of Dark Universe

    euclid

    Central Idea

    • European astronomers have unveiled the first images captured by the newly launched Euclid space telescope.
    • These groundbreaking images offer a glimpse into Euclid’s extraordinary capabilities, demonstrating its capacity to observe billions of galaxies situated up to 10 billion light years away.

    What is Euclid Mission?

    • Euclid’s mission, led by the European Space Agency (ESA) in partnership with NASA, aims to unravel the enigmatic forces of dark matter and dark energy, which together constitute 95% of the universe.
    • The Euclid Space Telescope is equipped with a 1.2-meter primary mirror, allowing it to capture detailed observations of galaxies.
    • It carries two main scientific instruments: the visible-wavelength camera (VIS) and the near-infrared camera and spectrometer (NISP).
    • By mapping the distribution and evolution of galaxies, Euclid aims to shed light on the fundamental forces shaping the cosmos.

    (1) Mission Scope and Duration

    • Euclid is a space-based mission, equipped with a sophisticated telescope and state-of-the-art scientific instruments.
    • The mission is expected to have a nominal operational lifetime of 6 years, during which it will conduct an extensive survey of the sky.

    (2) Launch and Spacecraft

    • Euclid was launched on July 1, 2023, from Cape Canaveral in Florida using a SpaceX Falcon 9 rocket.
    • The spacecraft carries the Euclid Space Telescope, which is designed to observe galaxies across a wide range of wavelengths.

    (3) Investigating Dark Energy and Dark Matter  

    • Dark energy, discovered in 1998, explains the unexpected acceleration of the universe’s expansion.
    • Euclid’s mission aims to provide a more precise measurement of this acceleration, potentially uncovering variations throughout cosmic history.
    • Dark matter, inferred through the gravitational effects it exerts on galaxies and clusters, plays a vital role in preserving their integrity.

    Remarkable Images taken by Euclid

    • Sharper and Clearer: These images are touted as the sharpest of their kind, showcasing Euclid’s precision and ability to capture intricate cosmic details.
    • Perseus cluster: Euclid’s observations span four regions within our relatively nearby universe, including the massive Perseus cluster, which is located just 240 million light-years away and contains over 1,000 galaxies.
    • Horseshoe Nebula: Euclid provided a unique perspective on celestial wonders like the Horsehead Nebula, a region where new stars are born.
    • Dark Matter’s Clues: Scientists believe that organized structures like the Perseus cluster could only have formed if dark matter exists. Dark matter is inferred from its gravitational influence on galaxies, including their rotation and the formation of massive cosmic structures.

    Unraveling the Dark Universe

    • 5% Visible, 95% Dark: The mission emphasizes that our understanding of the universe is limited to merely 5%—the matter we can see. The rest of the universe remains “dark” because it does not emit electromagnetic radiation, but its effects on visible matter are evident.
    • Dark Matter’s Role: Dark matter is suspected to influence galaxies’ rotation, galaxy clusters’ cohesion, and the formation of cosmic structures, further validating its existence.
    • Dark Energy’s Mystery: Dark energy, an even more enigmatic force, was proposed in the 1990s when the universe’s accelerated expansion was discovered. This mysterious energy was awarded a Nobel Prize in 2011.

    Mission Ahead

    • Creating a 3D Map: Following its initial commissioning and overcoming technical challenges, Euclid will construct a 3D map covering approximately one-third of the sky. This map will reveal subtle variations attributable to the dark universe.
    • Cosmic Web Exploration: By gaining insights into dark energy and dark matter, scientists aim to understand the formation and distribution of galaxies within the cosmic web, a network of cosmic structures that make up the universe.

  • 500-Years of Aldrovandi’s Herbarium

    Aldrovandi's Herbarium

    Central Idea

    • Researchers have found a 500-year-old herbarium from Italy, particularly Bologna in the north.
    • This collection, meticulously crafted by Italian naturalist Ulisse Aldrovandi between 1551 and 1586, offered a window into the past.

    Aldrovandi’s Herbarium

    • Floristic Changes: The herbarium, containing 5,000 specimens, unveiled a tapestry of historical changes in Italy’s flora over five centuries.
    • Human Impact: Clues of human disturbance, habitat loss, transformation, and the invasion of alien species emerged from the pressed and preserved plant specimens.
    • Climate Change: The collection allowed insights into the impact of climate change on Italy’s botanical landscape.
    • Demographic Trends: European demographic shifts, excluding the European part of the former USSR, were reflected in the herbarium.
    • Extinct and Unknown Species: The herbarium hinted at species, both native and alien, that have vanished or remain undiscovered in contemporary times.

    Legacy of Transformation

    • New World Influence: Aldrovandi’s herbarium holds the memory of Europe’s first encounters with species from the Americas, which later invaded the continent.
    • Transforming Flora: It documents the initial signs of a profound transformation in European flora and habitats, paving the way for the introduction of new species and ecological shifts.

  • Insights into White Holes, Time, and the Universe

    white hole

    Central Idea

    • In a discussion with a theoretical physicist, we explore the intriguing concepts of white holes, the nature of time, and their profound implications for our comprehension of the cosmos.
    • We delve into theories, from the transition of black holes to white holes to the fundamental granularity of space-time, providing a glimpse into the forefront of contemporary physics.

    White Holes and Their Significance

    • Reverse of Black Holes: White holes are essentially the opposite of black holes, with objects entering them behaving like a reversed movie.
    • Simplicity in Behavior: White holes exhibit a straightforward behaviour: objects fall in, rebound, and ascend along the same path with reduced velocity.
    • Quantum Mechanics Role: Quantum mechanics introduces the concept of a bounce within black holes, resulting in the formation of white holes.
    • Altering Space-Time: White holes challenge conventional notions of space-time, suggesting that it undergoes quantum leaps and is not uniform or local.

    Universe Emerging from a White Hole

    • Analogous to a Bouncing Ball: The transition from a black hole to a white hole shares similarities with a ball bouncing back from the ground, albeit with reduced energy.
    • Energy Dissipation: Energy dissipates as heat during this transition, a concept pioneered by Stephen Hawking known as Hawking radiation.
    • Black Hole to Big Bang: The theory posits that a universe entering a black hole could bounce and generate an event akin to the Big Bang, potentially leading to the creation of our universe.

    Understanding Time

    • Relativity of Time: Time does not progress uniformly for all observers; it varies based on factors such as velocity.
    • Einstein’s Insight: Albert Einstein introduced the idea that time is not a fixed entity like a clock but rather a flexible concept, akin to a stretchable rubber band.
    • The Time Field: Einstein envisioned time as an integral component of a gravitational field, influenced by mass and gravity.
    • Granular Space-Time: Combining quantum mechanics and gravity suggests that space-time is granular, consisting of discrete “time-steps,” challenging the notion of continuous space-time.

  • What is Stable Auroral Arc?

    stable aurora arc

    Central Idea

    • Recently, the Indian Astronomical Observatory (IAO) in Ladakh has astounded the world with mesmerizing images of a rare red-colored aurora, known as a Stable Auroral Arc (SAR).

    What is Stable Auroral Arc (SAR)?

    • Rare Phenomenon: SAR is a unique atmospheric occurrence witnessed during a potent G3-class geomagnetic storm.
    • Unconventional Origins: Unlike typical auroras resulting from space borne charged particles colliding with the atmosphere, SAR arcs have a distinct genesis.
    • Sign of Energy Flow: SAR arcs signify the transfer of heat energy into the upper atmosphere from Earth’s ring current system, a circular pathway carrying massive electrical currents encircling our planet.
    • Geomagnetic Storm Influence: During the recent geomagnetic storm, the ring current was dynamically charged due to prolonged intense geomagnetic activity, leading to the manifestation of SAR arcs.
    • Global Impact: This celestial event left its celestial mark across several regions worldwide.

    How is it formed?

    • Solar Wind Interaction: Aurora formation begins when the sun emits charged particles from its corona, creating solar wind. Upon colliding with Earth’s ionosphere, the mesmerizing aurora takes shape.
    • Northern and Southern Counterparts: In the Northern Hemisphere, it’s recognized as the northern lights (aurora borealis), while in the Southern Hemisphere, it’s referred to as the southern lights (aurora australis).
    • Magnetic Dance: The varying appearance of auroras in different hemispheres is attributed, in part, to the intricate interplay between the sun’s magnetic field and Earth’s magnetic field.

  • Challenges and Ambiguities in Biotechnology Policy for GM Insects

    insect

    Central Idea

    • In April 2023, the Department of Biotechnology (DBT) issued the ‘Guidelines for Genetically Engineered (GE) Insects’.
    • The guidelines note that GE insects are becoming globally available and are intended to help Indian researchers navigate regulatory requirements.
    • However, the guidelines don’t specify the purposes for which GE insects may be approved in India or how the DBT, as a promoter of biotechnology, envisions their use.

    Genetically Modified Insects (GE Insects)

    • A genetically modified insect is any insect whose genetic material has been altered using genetic engineering techniques.
    • GE insects offer multiple benefits, such as reducing disease burden, ensuring food security, and conserving the environment.
    • India’s bioeconomy contribution is expected to reach 5% of GDP by 2030, and GE insects play a crucial role in achieving this goal.
    • GE insects find applications in vector management, crop pest control, healthcare product production, and genetic improvement of beneficial insects.

    Guidelines for GM Insects

    • Nodal Agency: The Department of Biotechnology (DBT) under the Ministry of Science and Technology (MoST) is the nodal agency and promoter of biotechnology in India.
    • Purpose: The Guidelines provide procedural roadmaps for those interested in creating GE insects.
    • Harmonization: The guidelines have been harmonized with guidance from the World Health Organization on GE mosquitoes, emphasizing their potential applications in disease control.

    Why discuss this?

    • India’s bioeconomy, currently contributing 2.6% to the GDP, aspires to reach 5% by 2030, requiring substantial investment and supportive policies.
    • However, the Department of Biotechnology (DBT) faces challenges in both funding and policy alignment with these goals.

    Challenges in Biotechnology Funding

    • Stagnating Funding: Biotechnology funding in India has stagnated, with no return to pre-pandemic levels. The current allocation stands at a mere 0.0001% of India’s GDP, insufficient to drive meaningful growth.
    • Impact on Pandemic Preparedness: Inadequate funding hampers pandemic preparedness efforts, undermining national interests and health security.
    • Lack of Private Investment: Attracting private investment for biotechnology research and development is challenging and necessitates enhanced funding efforts.

    Policies for a Thriving Bioeconomy

    Guidelines for Genetically Engineered (GE) Insects: In April 2023, the DBT released guidelines for GE insects, offering procedural guidance but revealing three key issues.

    (1) Uncertainty of Purpose

    • The guidelines lack clarity regarding the purposes for which GE insects may be approved in India, hindering alignment with the broader bioeconomy commitment.
    • Emphasis is placed on improving disease management, food security, and environmental conservation, but the economic potential of GE insects is underemphasized.

    (2) Uncertainty for Researchers

    • The guidelines only apply to research and not confined trials or deployment, limiting researchers’ options.
    • Deployment of GE insects requires community engagement and monitoring due to potential environmental impacts, but criteria for approval remain unclear.
    • The absence of clarity on government support for specific insect applications discourages research investment.

    (3) Uncertainty of Ambit

    • Ambiguity surrounds the definition of ‘beneficial’ GE insects, creating uncertainty among funders and scientists.
    • Lack of precise guidelines inhibits progress, particularly in a country with limited public and private funding.
    • Inadequate consideration of potential misuse or unintended consequences adds to the uncertainty.

    Way forward

    • To achieve the ambitious bioeconomy goals set out in the Bioeconomy 2022 report, India must address challenges in biotechnology funding and policy alignment.
    • Increased funding, private sector engagement, and clear, supportive policies are essential.
    • The guidelines for GE insects should reflect economic opportunities and research priorities, fostering a thriving bioeconomy that benefits India’s society, economy, and environment.

  • Genetics of Silk Moth Domestication

    silk

    Central Idea

    • Silk, often hailed as the queen of fibers, boasts a rich and diverse history, with roots stretching back over 5,000 years to ancient China.
    • Its story encompasses the transition from the wild silk moth (Bombyx mandarina) to the domesticated silk moth (Bombyx mori), offering a fascinating glimpse into human ingenuity and nature’s adaptability.

    Silk Moth Domestication

    • Ancient Beginnings: Humans began domesticating silk moths from the wild Bombyx mandarina in China, marking the dawn of sericulture.
    • Global Reach: The domesticated Bombyx mori moth, significantly larger than its wild ancestor, now thrives worldwide, including in India.
    • Silk Powerhouse: India’s prowess in silk production makes it the second-largest raw silk producer globally, after China.

    Silkworms and Mulberry Leaves

    • Exclusive Diet: Caterpillars, known as silkworms, feed solely on the leaves of mulberry plants (genus Morus).
    • Cocoon Construction: The domesticated silk moth extrudes silk fibers of remarkable length, up to 900 meters, to construct larger cocoons. These caterpillars have lost the ability to fly and their pigmentation, adapting to human care.

    Diversity in Silk

    • Wild Silk Varieties: “Wild” silks, including muga, tasar, and eri, are derived from various moth species such as Antheraea assama, Antheraea mylitta, and Samia cynthia ricini.
    • Contrasting Characteristics: Non-mulberry silks differ significantly from mulberry silks, featuring shorter, coarser, and harder threads.

    The Enigmatic Cocoon Colors

    • Natural Variations: Domesticated silk moth cocoons come in a stunning array of colors, including yellow-red, gold, flesh, pink, pale green, deep green, and white.
    • Human Influence: Selective breeding for differently colored cocoons aimed to create colored silks, but these pigments are water-soluble, eventually fading. Acid dyes are used to achieve colored silks in the market.
    • Origins of Pigments: Pigments in cocoons are derived from carotenoids and flavonoids produced by mulberry leaves. Silkworms ingest these chemicals, which are then bound to silk proteins and spun into a single fiber.

    Mutant Strains and Genetic Insights

    • Valuable Resource: Mutant strains of silk moths have emerged due to mutations in genes governing pigment uptake, transport, and modification.
    • Diversity from Domestication: Silk domestication’s molecular basis has been primarily explored in China and Japan, with notable contributions from Indian scientists.

    Decoding Cocoon Colors: A Model Emerges

    • Genetic Factors: Researchers at Southwest University in Chongqing, China, proposed a model explaining how different mutations create diverse cocoon colors.
    • Key Genes: Genes like Y, C, F, Rc, and Pk play roles in pigment transportation and absorption, leading to variations in cocoon colors.
    • Green Cocoon Mystery: Mutations in the Y gene result in green cocoons when carotenoids are not absorbed, but flavonoids are. The intensity of green depends on other genes’ mutations, affecting flavonoid uptake.
    • Flavonoid Cluster: A cluster of closely related genes influences flavonoid uptake in cocoons.

    Gene Manipulation and Domestication

    • Hybrid Offspring: Researchers have created hybrid moths by interbreeding domesticated and ancestral silk moths.
    • Apontic-like Gene: Mutations in the apontic-like gene revealed differences in melanin production between domesticated and wild silk moths.
    • Regulatory Sequences: Variations in gene regulation sequences dictate when and where genes are activated or deactivated.

  • Rashmika Mandanna’s deepfake: Regulate AI, don’t ban it

    Deepfake

    Central idea

    The article highlights challenges in deepfake regulation using the example of the Rashmika Mandanna video. It calls for a balanced regulatory approach, citing existing frameworks like the IT Act, and recommends clear guidelines, public awareness, and potential amendments in upcoming legislation such as the Digital India Act to effectively tackle deepfake complexities.

    What is deepfake?

    • Definition: Deepfake involves using advanced artificial intelligence (AI), particularly deep learning algorithms, to create manipulated content like videos or audio recordings.
    • Manipulation: It can replace or superimpose one person’s likeness onto another, making it appear as though the targeted individual is involved in activities they never participated in.
    • Concerns: Deepfakes raise concerns about misinformation, fake news, and identity theft, as the technology can create convincing but entirely fabricated scenarios.
    • Legitimate Use: Despite concerns, deepfake technology has legitimate uses, such as special effects in the film industry or anonymizing individuals, like journalists reporting from sensitive or dangerous situations.
    • Sophistication Challenge: The increasing sophistication of AI algorithms makes it challenging to distinguish between genuine and manipulated content.

    Key Highlights:

    • Deepfake Impact: The article discusses the impact of deepfake technology, citing the example of a viral video of actor Rashmika Mandanna, which turned out to be a deepfake.
    • Regulatory Responses: It explores different approaches to regulate deepfakes, highlighting the need for a balanced response that considers both AI and platform regulation. Minister Rajeev Chandrasekhar’s mention of regulations under the IT Act is discussed.
    • Legitimate Uses: The article recognizes that while deepfakes can be misused for scams and fake videos, there are also legitimate uses, such as protecting journalists in oppressive regimes.

    Challenges:

    • Regulatory Dilemma: The article points out the challenge of finding a balanced regulatory approach, acknowledging the difficulty in distinguishing between lawful and unlawful uses of deepfake technology.
    • Detection Difficulty: Advancements in AI have made it increasingly difficult to detect deepfake videos, posing a threat to individuals depicted in such content and undermining trust in video evidence.
    • Legal Ambiguities: The article highlights legal ambiguities around deepfakes, as creating false content is not inherently illegal, and distinguishing between obscene, defamatory, or satirical content can be challenging.

    Key Facts:

    • The article mentions the viral deepfake video of Rashmika Mandanna and its impact on the debate surrounding deepfake regulations.
    • It highlights the challenges in detecting the new generation of almost indistinguishable deepfakes.

    Government Actions:

    • Legal Frameworks in Action: The Indian government relies on the Information Technology (IT) Act to regulate online content. For instance, platforms are obligated to remove unlawful content within specific timeframes, demonstrating an initial approach to content moderation.
    • Policy Discussions on Deepfakes: Policymakers are actively engaging in discussions regarding amendments to the IT Act to explicitly address deepfake-related challenges. This includes considerations for adapting existing legal frameworks to the evolving landscape of AI-generated content.

    What more needs to be done:

    • Legislative Clarity for Platforms: Governments should provide explicit guidance within legislative frameworks, instructing online platforms on the prompt identification and removal of deepfake content. For instance, specifying mechanisms to ensure compliance with content moderation obligations within stringent timelines.
    • AI Regulation Example: Develop targeted regulations for AI technologies involved in deepfake creation. China’s approach, requiring providers to obtain consent from individuals featured in deepfakes, serves as a specific example. Such regulations could be incorporated into existing legal frameworks.
    • Public Awareness Campaigns: Drawing inspiration from successful public awareness initiatives in other domains, governments can implement campaigns similar to those addressing cybersecurity. These campaigns would educate citizens about the existence and potential threats of deepfakes, empowering them to identify and report such content.
    • Global Collaboration Instances: Emphasizing the need for global collaboration, governments can cite successful instances of information-sharing agreements. For example, collaboration frameworks established between countries to combat cyber threats could serve as a model for addressing cross-border challenges posed by deepfakes.
    • Technological Innovation Support: Encourage research and development by providing grants or incentives for technological solutions. Specific examples include initiatives that have successfully advanced cybersecurity technologies, showcasing the government’s commitment to staying ahead of evolving threats like deepfake.

    Way Forward:

    • Multi-pronged Regulatory Response: The article suggests avoiding reactionary calls for specialized regulation and instead opting for a comprehensive regulatory approach that addresses both AI and platform regulation.
    • Digital India Act: The upcoming Digital India Act is seen as an opportunity to address deepfake-related issues by regulating AI, emerging technologies, and online platforms.

     

  • India’s Deep Ocean Mission: A Journey into the Abyss

    matsya

    Central Idea

    • India’s Deep Ocean Mission (DOM) is a visionary initiative aimed at exploring and harnessing the immense potential of the ocean’s depths.
    • Among its groundbreaking objectives, DOM will deploy an indigenous submersible with a three-member crew to reach a depth of 6,000 meters in the ocean, marking India’s first foray into the profound oceanic abyss.

    Deep Ocean Mission Overview

    • Mission Pillars: DOM, principally led by the Ministry of Earth Sciences (MoES), encompasses six pillars:
      1. Development of deep-sea mining technologies and a crewed submersible for exploring depths of 6,000 meters.
      2. Ocean climate change advisory services, involving extensive ocean observations and modeling.
      3. Technological innovations for deep-sea biodiversity exploration and conservation.
      4. Deep-ocean survey to identify potential sites of multi-metal hydrothermal sulphides mineralization.
      5. Harnessing energy and freshwater resources from the ocean.
      6. Establishment of an advanced Marine Station for Ocean Biology.
    • Strategic Significance: DOM aligns with the ‘New India 2030′ vision, focusing on a blue economy as a core objective for India’s growth. It is part of the United Nations’ ‘Decade of Ocean Science’ (2021-2030) and complements Prime Minister Narendra Modi’s emphasis on sustainably utilizing the ocean’s potential for national development.
    • Collaborative Efforts: Multiple MoES institutes, including the Centre for Marine Living Resources and Ecology (CMLRE), Indian National Centre for Ocean Information Services (INCOIS), National Centre for Coastal Research (NCCR), National Centre for Polar and Ocean Research (NCPOR), and National Institute of Ocean Technology (NIOT), collaborate with national institutes and academia to achieve DOM’s objectives.

    Progress on Pillar 1: Deep-Sea Mining Technologies and Crewed Submersible:

    • ‘Samudrayaan’ Initiative: India’s deep ocean mission, ‘Samudrayaan,’ was launched in 2021 under the leadership of MoES. It aims to reach a depth of 6,000 meters in the central Indian Ocean using the ‘Matsya6000’ submersible, accommodating a crew of three members.
    • Submersible Features: Matsya6000 is equipped with scientific sensors, tools, and an operational endurance of 12 hours (extendable to 96 hours in emergencies). The submersible’s design is complete, with testing and experimentation at a depth of 500 meters scheduled in the upcoming year.
    • Mining System: NIOT is developing an integrated system for mining polymetallic nodules from the central Indian Ocean bed. This mineral-rich region, allocated by the United Nations International Seabed Authority (ISA), includes copper, manganese, nickel, and cobalt.
    • Successful Trials: NIOT conducted deep-sea locomotion trials with the ‘Varaha’ underwater mining system at a depth of 5,270 meters in the central Indian Ocean. Varaha collected polymetallic nodules during the trial, marking a significant milestone.
    • Challenges: Deep-sea exploration faces immense challenges, including high pressure, soft and muddy ocean bed surfaces, power supply constraints, visibility limitations, temperature variations, and corrosion. NIOT and MoES are committed to addressing these complexities.

    Significance of the Chosen Depth (6,000 meters)

    • Strategic Depth: Targeting a depth of 6,000 meters serves a strategic purpose. India aims to sustainably extract valuable resources such as polymetallic nodules and sulphides, with ISA allocating regions in the central Indian Ocean for exploration.
    • Resource Distribution: Polymetallic nodules, rich in metals like copper, manganese, nickel, iron, and cobalt, are found around 5,000 meters deep. Polymetallic sulphides occur at approximately 3,000 meters. By operating at 6,000 meters, India can effectively cover depths of 3,000 to 5,500 meters, spanning its Exclusive Economic Zone and the central Indian Ocean.

    Challenges in Deep-Ocean Exploration

    • High Pressure: Exploring the deep oceans involves extreme pressure conditions, with water exerting tremendous force. Equipment must be meticulously designed to withstand these conditions.
    • Soft Ocean Bed: The soft and muddy ocean bed complicates landing and maneuvering for heavy vehicles.
    • Material Durability: Electronics and instruments must endure underwater conditions, unlike space where objects are designed to function in a vacuum.
    • Extraction Challenges: Extracting materials from the ocean bed necessitates significant power and energy, with the need to transport extracted minerals to the surface.
    • Visibility Constraints: Limited natural light penetration in deep waters poses visibility challenges.

    Matsya-6000 and Varaha: A Vision for India’s Ocean Exploration

    • Matsya6000: India’s flagship deep-ocean submersible combines features of remotely operated vehicles (ROVs) and autonomous remote vehicles (AUVs). It accommodates a crew of three, is constructed from titanium alloy, and is designed to withstand high pressures.
    • Varaha: Varaha is India’s deep-ocean mining system, operating on the flexible riser technique. It successfully conducted deep-sea locomotion trials at a depth of 5,270 meters, marking a world record.
    • Unique Ecosystem: India is poised to possess a comprehensive underwater vehicle ecosystem, encompassing deep-water ROVs, polar ROVs, AUVs, deep-water coring systems, and more.

    Conclusion

    • India’s Deep Ocean Mission is a pioneering endeavour to explore and harness the potential of the ocean’s depths.
    • With Matsya6000 and Varaha, India is poised to join the selective nations conducting deep-ocean exploration and mining.