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A giant plunge towards Samudrayaan: 2 Indians create history with 5,000-metre dive into Atlantic Ocean
//science-technology.news-articles.net/content/2 .. y-with-5-000-metre-dive-into-atlantic-ocean.html
Published in Science and Technology on Thursday, August 14th 2025 at 16:54 GMT by ThePrint🞛 This publication is a summary or evaluation of another publication 🞛 This publication contains editorial commentary or bias from the source
Raju Ramesh & Jatinder Pal Singh will be 'aquanauts' to lead India's own Samudrayaan mission in 2027.
India's Historic 5,000-Metre Dive in the Atlantic: A Leap Towards Samudrayaan-2
In a groundbreaking feat of engineering and scientific prowess, a team of Indian researchers has successfully conducted a deep-sea dive to a depth of 5,000 meters in the Atlantic Ocean, marking a significant milestone in India's ambitious Samudrayaan project. This achievement, accomplished aboard the research vessel Sagar Nidhi, underscores India's growing capabilities in ocean exploration and positions the country as a key player in global deep-sea research. The dive, which took place in international waters off the coast of Bermuda, involved the deployment of an advanced underwater vehicle designed to withstand extreme pressures and collect valuable data from the ocean's abyssal depths. This success not only validates India's technological advancements but also paves the way for the next phase of the Samudrayaan mission, aimed at exploring the Indian Ocean's riches and contributing to sustainable resource utilization.
The Samudrayaan project, initiated by the Ministry of Earth Sciences (MoES), is India's flagship deep-ocean exploration program, drawing parallels with the nation's successful space missions like Chandrayaan. Launched in 2021, Samudrayaan seeks to develop indigenous capabilities for manned and unmanned submersible operations, with the ultimate goal of sending humans to depths exceeding 6,000 meters. The recent Atlantic dive represents a critical test for the project's second phase, Samudrayaan-2, which focuses on enhancing the submersible's endurance, autonomy, and scientific instrumentation. Unlike the initial phase, which involved shallower dives in the Bay of Bengal, this international expedition pushed the boundaries by targeting the hadal zone-like conditions in the Atlantic, where pressures can exceed 500 atmospheres—equivalent to the weight of an elephant on every square inch.
At the heart of this achievement is the Matsya-5000, a state-of-the-art remotely operated vehicle (ROV) developed by the National Institute of Ocean Technology (NIOT) in Chennai. Named after the mythical fish avatar of Lord Vishnu, Matsya symbolizes exploration and protection of the seas. The vehicle is equipped with high-resolution cameras, robotic arms for sample collection, sonar systems for mapping the seafloor, and sensors to measure parameters like temperature, salinity, and dissolved oxygen. During the dive, the team successfully navigated the ROV to 5,000 meters, where it captured stunning footage of the ocean floor, including bioluminescent organisms, hydrothermal vents, and sediment layers that hold clues to Earth's geological history. The operation lasted several hours, with real-time data transmission to the surface vessel, demonstrating the robustness of India's underwater communication technologies.
This dive was not without its challenges. The team, comprising engineers, oceanographers, and marine biologists from NIOT and other institutions like the Indian Space Research Organisation (ISRO), had to contend with unpredictable ocean currents, pitch-black darkness, and the risk of equipment failure under immense pressure. Preparations involved rigorous simulations in hyperbaric chambers and collaboration with international experts, including those from the United States and Europe, who provided insights into deep-sea robotics. The choice of the Atlantic Ocean was strategic, as it offered a neutral testing ground away from territorial disputes, allowing the team to focus purely on technical validation. One of the key innovations tested was the vehicle's titanium hull, designed to resist corrosion and implosion, alongside advanced battery systems that enable prolonged missions without frequent resurfacing.
The implications of this success extend far beyond national pride. Scientifically, the data collected could revolutionize our understanding of deep-sea ecosystems, biodiversity hotspots, and mineral resources like polymetallic nodules, which are rich in rare earth elements crucial for electronics and renewable energy technologies. India, with its vast exclusive economic zone spanning over 2 million square kilometers, stands to benefit immensely from such explorations. The Samudrayaan project aligns with the global Blue Economy initiative, promoting sustainable harvesting of ocean resources while addressing climate change impacts, such as ocean acidification and rising sea levels. Economically, it could open doors to mining operations in the Central Indian Ocean Basin, where India holds exploration rights granted by the International Seabed Authority.
Moreover, this achievement highlights India's self-reliance in high-tech domains, reducing dependence on foreign technology. The project has fostered collaborations between academia, industry, and government, with contributions from companies like Larsen & Toubro for manufacturing components and startups specializing in AI-driven navigation. Educationally, it inspires a new generation of scientists, with outreach programs already underway to engage students in marine sciences. Looking ahead, the team plans to integrate human-rated capabilities into the submersible, aiming for crewed missions by 2026. This would make India one of the few nations—alongside the US, China, Russia, Japan, and France—capable of manned deep-sea exploration.
Critics, however, point out the environmental risks associated with deep-sea mining, urging caution to prevent disruption of fragile ecosystems. The Indian government has emphasized eco-friendly approaches, incorporating environmental impact assessments into the mission's framework. Internationally, this dive has garnered praise, with experts noting its potential to contribute to global oceanographic databases and collaborative projects like the UN Decade of Ocean Science for Sustainable Development.
In essence, this 5,000-meter plunge in the Atlantic is more than a technical triumph; it's a bold statement of India's intent to conquer the final frontier on Earth—the deep ocean. As Samudrayaan-2 progresses, it promises to unlock mysteries hidden beneath the waves, fostering innovation, sustainability, and a deeper connection to our planet's blue heart. With continued investment and international partnerships, India is poised to lead in ocean exploration, turning the vast, unexplored depths into opportunities for scientific discovery and economic growth. This historic dive serves as a testament to human ingenuity, reminding us that the ocean, covering 70% of Earth's surface, holds untapped potential waiting to be revealed.
Read the Full ThePrint Article at:
[ https://theprint.in/science/a-giant-plunge-towards-samudrayaan-2-indians-create-history-with-5000-metre-dive-into-atlantic-ocean/2721173/ ]