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

  • Earendel: Most distant Star discovered

    Earendel

    Central Idea

    • The remarkable discovery of the star Earendel by the Hubble Space Telescope in 2022 has been further illuminated by the James Webb Space Telescope.

    About Earendel

    • Earendel is the farthest star ever detected, observed within the first billion years after the big bang.
    • It’s a massive B-type star, more than twice as hot as the Sun, and a million times more luminous.
    • The star is part of the Sunrise Arc galaxy, detectable due to the gravitational lensing
    • Gravitational lensing is a natural phenomenon where the mass of a massive object bends and magnifies light from a background object.
    • The massive galaxy cluster WHL0137-08 acts as a “magnifying glass,” allowing telescopes to observe Earendel even though it’s distant.

    How was it discovered?

    • JSWT discovery: The James Webb Space Telescope employed its Near-Infrared Camera (NIRCam) to build upon Hubble’s observations of Earendel.
    • Star’s Characteristics: The revelations from NIRCam showcase Earendel as a massive B-type star, surpassing our Sun’s heat by over twofold and radiating luminosity a million times greater.
    • 9 Billion Light-Years Away: Situated approximately 12.9 billion light-years from Earth, Earendel holds insights into the early universe’s cosmic evolution.
    • Gravitational Lensing: Both Webb and Hubble harnessed gravitational lensing—a phenomenon where foreground galaxies magnify distant objects—to detect Earendel, with galaxy cluster WHL0137-08 acting as a cosmic magnifying lens.

    Glimpse into it’s Past

    • Single Point of Light: Due to its immense distance, Earendel appears as a solitary point of light even on Webb’s high-resolution infrared imagery.
    • Snapshot from 1 Billion Years Post-Big Bang: Although Earendel remains a faint pinpoint, the telescope’s data indicates that we are witnessing the star as it appeared 1 billion years after the Big Bang.
    • Historic Perspective: This revelation pushes the boundaries of our knowledge, as the previous farthest observed star had been documented around 4 billion years post-Big Bang.

  • Integration of NavIC with Aadhaar Enrolment Devices

    navic

    Central Idea

    • The Navigation with Indian Constellation (NavIC), India’s indigenous satellite navigation system, is set to be integrated into Aadhaar enrolment devices.
    • This strategic move, as revealed by the Department of Space (DoS) showcases the seamless amalgamation of advanced technologies to enhance the functionality and reach of essential services.

    What is NAVIC?

    • History: Originally conceptualized as the Indian Regional Navigation Satellite System (IRNSS), the project sought to establish an autonomous navigation infrastructure to fulfill both civilian and strategic requirements.
    • Reducing Foreign Dependency: The core motivation behind NAVIC was to lessen dependence on foreign navigation systems like GPS and cultivate a self-reliant platform.
    • Comprehensive Constellation: The NAVIC constellation encompasses a total of 7** satellites.
    • Deployment Chronology: Launches of satellites such as IRNSS-1A, IRNSS-1B, IRNSS-1C, IRNSS-1D, IRNSS-1E, IRNSS-1F, and IRNSS-1I commenced in July 2013, continuing the phased deployment.

    Key Features and Technical Excellence

    • Standard Position Service (SPS) and Restricted Service (RS): NavIC offers two services – SPS for civilian users and RS for strategic users. These services are available in both L5 (1176.45 MHz) and S band (2498.028 MHz).
    • Coverage Area: NavIC covers India and extends up to 1,500 km beyond its borders. Upcoming satellites will include the L1 band compatible with civilian applications.

    NavIC and Aadhaar Enrolment Devices

    • Field Trials and Technical Expertise: The DoS has successfully conducted field trials and provided technical expertise to finalize the procurement specifications for integrating NavIC into Aadhaar enrolment devices.
    • Current Setup: The Aadhaar enrolment kits presently use GPS for location-based services, which gather and authenticate personal information during enrolment.

    Utilization in other areas

    • Disaster Management: NavIC plays a pivotal role in the National Disaster Management Agency’s alert dissemination system for natural calamities like landslides, earthquakes, floods, and avalanches.
    • Ocean Information Broadcast: The Indian National Centre for Ocean Information System employs NavIC to broadcast alerts regarding cyclones, high waves, and tsunamis to fishermen operating in deep-sea regions.
    • Standardization Efforts: Various organizations, including the Bureau of Indian Standards (BIS), Telecom Standards Development Society of India (TSDSI), Telecom Engineering Centre (TEC), and international bodies like the International Electrotechnical Committee (IEC), are actively working on setting interoperability standards for NavIC.

  • Perseid Meteor Shower to be visible soon

    perseid

    Central Idea

    • The Perseid meteor shower is anticipated to peak around August 13.

    Perseid Meteor Shower

    • Origin of Phenomenon: The Perseid meteor shower originates from Earth’s passage through debris consisting of ice, rock, and dust, shed by Comet Swift-Tuttle.
    • Orbital details: This comet, with an orbital period of 133 years, last illuminated the skies in 1992 and will not grace Earth’s vicinity until 2125, as confirmed by NASA.
    • Historic Discovery: Astronomers Lewis Swift and Horace Tuttle discovered Comet Swift-Tuttle in 1862, laying the foundation for understanding this celestial spectacle.

    Its occurrence

    • Annual Affair: A time-honoured spectacle, the Perseids meteor shower reaches its zenith every mid-August, enchanting both astronomers and laymen with its celestial display.
    • Residual Cosmic Debris: The Perseids meteor shower unfolds as our planet intersects the path of cosmic remnants cast adrift by Comet Swift-Tuttle. This cosmic cloud spans approximately 27 km in width.
    • Dazzling Cascade: Amidst this cosmic choreography, a breathtaking scene emerges as Earth encounters these fragments. During the peak, between 160 and 200 meteors elegantly streak through the atmosphere each hour, leaving behind a luminous trail of splendour.
    • Speed and Splendor: Travelling at a staggering speed of around 214,000 km per hour, these meteors ignite a fiery display as they disintegrate nearly 100 km above the Earth’s surface.

    What are Meteoric Showers?

    • Cosmic Origins: Meteors, fragments of rock and ice, are expelled from comets during their celestial orbits around the sun. The Earth’s atmosphere heats these space rocks as they descend, leaving luminous streaks of gas in their wake.
    • A Symphony of Debris: Meteor showers unfold when our planet traverses the debris trail left behind by comets or asteroids during their celestial journey. A cascade of meteorites gracing the skies in unison constitutes a meteor shower.
    • Celestial Tapestry: NASA’s records attest to the existence of over 30 meteor showers annually, painting the skies with celestial beauty observable from our terrestrial vantage point.

  • Learning from the CHIPS Act of the U.S.

    What’s the news?

    • The United States’ CHIPS Act, which authorizes substantial funding over five years to boost its semiconductor industry, celebrates its one-year anniversary.

    Central idea

    • Industrial policies have become pivotal tools for nations to secure competitiveness, innovation, and national security. The CHIPS Act exemplifies such an endeavor, allocating $52.7 billion to bolster the American semiconductor sector. While not a blueprint, this Act offers essential lessons for India’s semiconductor strategy.

    What is the CHIPS Act?

    • The CHIPS Act, or the Creating Helpful Incentives to Produce Semiconductors for America Act, is a United States federal law that was enacted in 2022.
    • It aims to address various challenges and concerns related to the semiconductor industry in the United States.
    • The CHIPS Act was introduced to boost American competitiveness, innovation, and national security in the semiconductor sector. It recognizes the strategic importance of semiconductor manufacturing and technology leadership for economic growth and national defense.

    Notable features of the CHIPS Act

    • Significant Funding: The CHIPS Act authorizes $52.7 billion over five years to boost American competitiveness, innovation, and national security in the semiconductor industry.
    • Cooperation Across Government: The Act involves cooperation and coordination between multiple government arms, with separate funds allocated to different departments, including the Department of Commerce, the Department of Defense, the Department of State, and the National Science Foundation.
    • Lead Agency: The Department of Commerce is designated as the lead agency responsible for administering the $50 billion CHIPS for America Fund, which focuses on accelerating semiconductor manufacturing and research within the United States.
    • National Semiconductor Technology Center (NSTC): A nodal agency, the NSTC, is created to collaborate with industry and educational institutions to develop a competent semiconductor engineering workforce and promote growth in the field.
    • Investment Principals and Financial Structuring Directors: The CHIPS Act establishes a CHIPS Program Office (CPO) responsible for assessing project viability and attracting private sector investments. Investment Principals and Financial Structuring Directors are hired to catalyze private sector involvement.
    • Future Research Focus: The Act doesn’t solely focus on immediate manufacturing needs. It allocates funding, such as the $11 billion investment in future research, which includes areas like advanced packaging techniques, to ensure the country’s competitiveness in the long term.
    • Industrial Policy Template: The CHIPS Act provides a valuable template for effective industrial policy in the semiconductor industry, showcasing institutionalized administrative capacity that supports continuity beyond changes in government.

    India’s semiconductor policy

    • MeitY’s Leadership: MeitY plays a pivotal role in formulating and executing India’s semiconductor strategy. The ministry’s oversight spans various aspects, including manufacturing, assembly, design, and compound semiconductors.
    • India Semiconductor Mission (ISM): Within MeitY, the India Semiconductor Mission (ISM) has been established to focus on manufacturing, assembly, and displays. ISM aims to foster indigenous production capabilities by collaborating with industry and academic institutions.
    • C-DAC for Chip Design: The Centre for Development of Advanced Computing (C-DAC), another MeitY initiative, focuses on chip design. By investing in research and development, C-DAC aims to enhance India’s expertise in chip design and innovation.
    • Chips2 Startup (C2S) Program: MeitY’s C2S program collaborates with universities and colleges to cultivate a skilled semiconductor engineering workforce. This initiative emphasizes the importance of industry-aligned training programs to cater to the sector’s specific needs.
    • Manufacturing and Export Incentives: To attract investment and promote domestic manufacturing, India offers incentives such as the Production Linked Incentive (PLI) scheme. This encourages semiconductor companies to establish manufacturing facilities in India.

    Lessons for India

    • Whole-of-Government Approach: India’s semiconductor strategy should adopt a whole-of-government approach, similar to the CHIPS Act, to ensure coordination and continuity across different government departments and agencies involved in semiconductor-related initiatives.
    • Collaboration and Coordination: Like the CHIPS Act, India should emphasize collaboration between industry, academia, and government to build a skilled semiconductor workforce and ensure alignment between education and industry needs.
    • Certification of Training Programs: Instead of directly running training programs, India should focus on certifying quality training programs offered by universities and private training institutes to ensure a competent workforce in the semiconductor sector.
    • Long-Term Vision: India’s semiconductor strategy should not only address immediate manufacturing needs but also outline a long-term vision for sustained growth and leadership in the industry.
    • Public-Private Collaboration: India should encourage public-private collaboration to attract private sector investments and leverage the expertise of both government and industry for semiconductor development.
    • Flexibility in Policy Implementation: India’s semiconductor strategy should be adaptable, allowing for adjustments based on changing industry trends and challenges while aligning with the nation’s goals.

    Conclusion

    • The CHIPS Act serves as a template for effective industrial policy in the semiconductor sector. By analyzing its strengths and weaknesses, India can learn valuable lessons for structuring its own strategy to achieve competitiveness, innovation, and national security in semiconductors. Effective execution and a comprehensive approach are key takeaways for India’s policymakers.

  • Centre to probe Havana Syndrome Cases in India

    havana

    Central Idea

    • Havana Syndrome, a mysterious set of mental health symptoms experienced by US intelligence and embassy officials in India, has caught the attention of authorities.

    What is Havana Syndrome?

    • Cuban Incident: The term “Havana Syndrome” originated in Cuba in late 2016 when US officials at the newly opened US embassy in Havana reported symptoms like pressure in the brain, headaches, and disorientation. The cause of these symptoms initially sparked suspicions of a “sonic attack” orchestrated by Cuban intelligence.
    • Subsequent Reports: Following the Cuban incident, similar symptoms were reported by American officials stationed in China, Russia, Poland, Georgia, Taiwan, Colombia, Kyrgyzstan, Uzbekistan, Austria, and even in Washington DC, including near the White House.

    Havana Syndrome in India

    • Sole Reported Case: As of July 2023, the 2021 incident involving a US intelligence officer in India is the only reported case of Havana Syndrome in the country.
    • Indian Security Establishment: Indian security officials have claimed that they are not aware of any agency possessing such microwave-based counter-espionage technology.
    • Geopolitical Considerations: Given India’s friendly relations with the US, officials find it unlikely that an Indian agency or foreign power would target US officials in this manner.

    Possible Causes of Havana Syndrome

    • Microwave Exposure: Scientific research and medical examinations of the victims have suggested that high-powered microwaves may have damaged or interfered with the nervous system, leading to the reported symptoms.
    • Microwave Weapon: The syndrome was speculated to be caused by beams of high-powered microwaves sent through a specialized gadget known as a “microwave weapon.”
    • Counter-Intelligence Tactic: Both Russia and the US have experimented with using microwaves as a counter-intelligence tactic since the Cold War.

    Debunking the Havana Syndrome Theory

    • Lack of Conclusive Evidence: Despite years of data collection and experiments, the US has not found conclusive evidence to support the existence of a “microwave weapon.”
    • Psychological Illness Amplified: Some medical experts argue that the syndrome could be a psychological illness amplified by fear of being targeted.
    • Impact on Relations: A report from several US security agencies in 2023 suggested that foreign adversaries were unlikely to be behind the “anomalous health incidents,” which may have impacted US-Cuba relations.

    Conclusion

    • The enigmatic Havana Syndrome continues to baffle experts and policymakers worldwide, with no definitive evidence of its origins and causes.
    • As India examines the issue in response to the recent petition, the global mystery surrounding Havana Syndrome remains an ongoing concern for intelligence communities and governments alike.

  • How to check if a material is a Superconductor?

    Central Idea

    • Researchers in South Korea have recently unveiled a potential room-temperature superconductor named LK-99, a discovery that could revolutionize industrial and medical applications due to its ability to conduct heavy currents with zero resistance.
    • This article delves into the key characteristics that define a superconductor and the significance of LK-99’s potential discovery.

    Understanding Superconductors

    A superconductor is a material that, under specific conditions, displays four distinct changes indicating its transition to the superconducting state.

    (1) Electronic Effect:

    • A genuine superconductor demonstrates zero resistance when conducting electric current.
    • Verifying this property requires advanced equipment and testing on a sufficiently large sample.

    (2) Magnetic Effect:

    • Different types of superconductors exhibit unique responses to magnetic fields.
    • A type I superconductor expels a magnetic field below a critical value, creating the Meissner Effect.
    • A type II superconductor, undergoing a mixed superconducting and non-superconducting phase, prevents magnetic fields from penetrating its bulk, known as flux pinning.

    (3) Thermodynamic Effect:

    • The electronic-specific heat, representing the heat required to raise electron temperature by 1 degree Celsius, changes significantly during the superconducting transition.
    • As the material shifts to its superconducting state, the electronic-specific heat decreases.
    • Upon re-warming the material to the critical temperature, the specific heat reverts to its non-superconducting value.

    (4) Spectroscopic Effect:

    • A distinctive feature of superconductors is the presence of energy level gaps that restrict electrons from certain energy states.
    • Mapping energy levels in a superconductor reveals these gaps, serving as an indicator of its superconducting nature.

    Conventional vs. Unconventional Superconductors:

    • Conventional Superconductors: These materials adhere to the Bardeen-Cooper-Schrieffer theory of superconductivity. They display predictable behaviors explained by established scientific principles.
    • Unconventional Superconductors: In contrast, unconventional superconductors exhibit superconductivity that defies current theoretical explanations. Their unique properties challenge researchers to unravel the mysterious origins of their superconducting abilities.

    About Material LK-99

    • Apatite Structure: The Korean group utilized copper-substituted lead apatite, a phosphate mineral with unique tetrahedral motifs, to create LK-99.
    • Superconducting Behavior: LK-99 displayed essential superconducting properties, with almost zero resistance to current flow and sudden emergence of resistance above a critical current threshold.
    • Magnetic Resilience: LK-99 retained superconductivity even under the presence of a magnetic field until reaching a critical threshold.

    Implications of the LK-99 Discovery

    • The potential room-temperature superconductor LK-99 carries the promise of transforming various industries and medical applications.
    • However, thorough validation by independent researchers is necessary to establish its authenticity and potential impact.
    • If confirmed, LK-99 could reshape the way we harness and utilize electrical currents in a multitude of fields.

  • Cybersecurity threats from online gaming

    What’s the news?

    • The video gaming industry has come a long way from Pong in 1972 to the release of Hogwarts Legacy in 2023. The recent surge has been a result of COVID-19, when the market expanded by about 26 percent between 2019 and 2021. However, this popular form of recreation has also imperiled cybersecurity.

    Central idea

    • The video gaming industry has experienced tremendous growth, transforming from a niche form of entertainment to a multi-billion-dollar global phenomenon. With over US$227 billion in revenue in 2022 and an expected 3.32 billion gamers by 2024, the industry’s popularity is unprecedented. However, this remarkable expansion has also led to a surge in cyberattacks, imperiling cybersecurity.

    A Surge in Cyberattacks

    • The gaming sector has become a prime target for cybercriminals, experiencing a staggering 167 percent increase in web application attacks in 2021 alone.
    • In 2022, the industry witnessed an unprecedented wave of Distributed Denial of Service (DDoS) attacks, with gaming platforms accounting for approximately 37 percent of all such attacks.
    • These cyber threats have put gamers at risk, with account takeovers, cheating mods, credit card theft, and fraud becoming disturbingly common.

    The Pentagon Leak Case

    • One of the most alarming cyber incidents occurred in April 2023, when a Discord server centered around the popular video game Minecraft, became the source of the worst Pentagon leak in years.
    • Classified documents, some marked top Secret, were exposed, containing sensitive information about the ongoing Ukraine-Russia conflict, potential issues with Ukrainian ammunition supplies, and intelligence regarding the Russian military.
    • Shockingly, the documents also hinted at US surveillance of its allies, specifically Israel and South Korea.

    The virtual economy of video games

    • The monetization of video games through in-game currencies and microtransactions has given rise to virtual economies.
    • While developers offer players the ability to purchase virtual items using real money, the practice has come under scrutiny due to its perceived predatory nature, particularly concerning minors.
    • Some countries have outright banned such practices, deeming them a form of online gambling. For example, Belgium banned the purchase of FIFA points, an in-game currency, in the famous football franchise FIFA.
    • In February 2023, Austria followed suit, declaring FIFA packs illegal gambling.

    The current policy framework around online gaming

    • As of April 2023, the Ministry of Electronics and Information Technology (MeitY) in India has implemented new rules to regulate the online gaming industry.
    • The current policy framework divides online games into two categories:
    1. Online real money games: Games that involve real money and are registered with Self-Regulatory organizations (SROs). These games are subject to specific regulations and oversight.
    2. Games that do not involve real money: Games that do not have any monetary transactions or betting and wagering involved.

    The key provisions of the current policy framework

    • Ban on online games involving betting and wagering: The new rules explicitly ban online games that have elements of betting and wagering. This move aims to curb illegal gambling activities within the gaming space.
    • Obligations for online gaming intermediaries: The rules define the responsibilities and obligations of online gaming intermediaries. These intermediaries are required to follow certain norms, including Know Your Customer (KYC) norms, parental consent, and grievance redressal mechanisms. The objective is to enhance transparency and accountability in the sector.
    • Establishment of Self-Regulatory Organizations (SROs): The policy requires the appointment of three SROs, consisting of industry representatives, educationists, and other experts. These SROs play a crucial role in determining which online games are permissible under the regulations.

    Limitations of the current policy framework

    • Narrow focus: The rules primarily target online games that involve real money transactions and betting. They do not comprehensively address other potential threats like microtransactions, loot boxes, and money laundering using virtual currencies.
    • Loopholes: Many online games can bypass the regulations by offering rewards and prizes in virtual currency instead of real money. This allows certain gaming practices, resembling gambling, to continue unchecked.
    • Ignoring loot boxes: The rules do not specifically address the issue of loot boxes, which have been controversial and deemed potential forms of gambling in many countries.
    • Lack of collaboration: The current policy framework appears to be a unilateral effort by the Indian government without substantial consultation with relevant stakeholders, including industry experts and gamers.

    Way Forward

    • Strengthen the Regulatory Framework: Expand and make the current policy framework more comprehensive, including microtransactions and loot boxes, to tackle potential gambling-related issues.
    • Collaborate with Industry Experts: Engage with gaming companies, cybersecurity experts, and gamers to gain insights into specific cybersecurity threats and devise effective regulations.
    • Raise Awareness among Gamers: Educate users about cybersecurity threats, secure practices, and reporting mechanisms for suspicious activities.
    • Invest in Robust cybersecurity. Prioritize cybersecurity by investing in encryption, secure authentication, and regular security audits.
    • Develop Reporting Mechanisms: Implement efficient reporting systems within gaming platforms to address cyber threats promptly.
    • International Cooperation: Collaborate globally to share intelligence and best practices in combating cybercrime.
    • Ethical Game Design: Encourage ethical practices that prioritize player well-being over excessive monetization.

    Conclusion

    • Online gaming is one of the fastest-growing sectors in the global entertainment and media industry and provides a powerful new platform to unite people from all around the world. Consequently, we need to ensure that the industry continues to grow in a safe and responsible manner, and that bad actors looking to tarnish the experience for others are dealt with accordingly.

  • ISRO Rocket Debris on Australian Shore

    isro space debris

    Central Idea

    • A couple of weeks ago, a large object discovered on the shores of Western Australia has been confirmed to be the debris of an ISRO rocket used for IRNSS constellation.
    • The incident raises concerns about space debris and its potential impact on Earth and its inhabitants.

    Frequency and Risks of Space Junk

    • Common Occurrences: Incidents of space debris falling back to Earth are not uncommon. Most instances involve relatively small fragments that survive atmospheric friction, typically not making significant news.
    • Publicized Instances: However, there have been a few highly publicized falls, such as a 25-tonne Chinese rocket chunk falling into the Indian Ocean in May 2021 and the disintegration of the Skylab space station in 1979, with some fragments landing in Western Australia.

    How did ISRO debris land in Australia?

    • Probable Re-entry and Ocean Drift: The debris likely remained unburnt while dropping back into the atmosphere during re-entry and eventually fell into the ocean. Ocean currents may have carried it towards the Australian shores.
    • Move for disposal: The Australian Space Agency is working with ISRO to determine the next steps, including considering obligations under the United Nations space treaties.

    Potential Hazards and Impact

    • Threat to Life and Property: The threat to life and property from falling space junk cannot be ignored. Even objects falling into oceans can pose risks to marine life and contribute to pollution.
    • Recorded Incidents: So far, there are no recorded incidents of falling space objects causing significant damage on Earth. Instances of debris falling over land have generally occurred in uninhabited areas.

    International Regulations and Liability

    • Convention on International Liability for Damage Caused by Space Objects: International regulations, such as this Convention, govern issues related to space debris falling back to Earth.
    • Absolute Liability: The launching country is “absolutely liable” to pay compensation for any damage caused by its space object on Earth or to a flight in the air.
    • Compensation Provision: In the current case, if the PSLV debris had caused any damage in Australia, India could have been liable to pay compensation, regardless of it falling into the ocean first.
    • Past Compensation: The Convention has resulted in compensation payment only once when Canada sought damages from the Soviet Union for a satellite with a radioactive substance falling into its uninhabited northern territory in 1978. The Soviet Union paid 3 million Canadian dollars as compensation.

    Liability Convention, 1972

    • What is it? The Convention on International Liability for Damage Caused by Space Objects, often referred to as the Liability Convention, is indeed an important international treaty in the field of space law.
    • Primary Objective: The main purpose of the convention is to provide a legal framework for dealing with liability arising from damage caused by space objects on Earth’s surface or in outer space.
    • Adoption and Entry into Force: The Liability Convention was adopted on March 29, 1972, and it became effective on September 1, 1972. It is one of the 5 UN treaties that pertain to space law.
    • Liability of Launching States: The convention holds the launching state (internationally liable for any damage caused by its space objects on Earth’s surface or to aircraft in flight.
    • Applicability: The convention applies to both governmental and non-governmental entities involved in launching space objects.
    • Strict Liability: It establishes strict liability for the launching state, meaning that it is held responsible for damages caused by its space object regardless of fault or negligence.
    • Limitation of Liability: The liability of the launching state is subject to a limitation. As of my knowledge cutoff in September 2021, the cap was set at 60 million Special Drawing Rights (SDRs), a monetary unit used by the International Monetary Fund.
    • Liability for Unauthorized Launches: Even if a space object is owned by a private entity or a state that did not authorize the launch, the launching state is still liable unless it can demonstrate that it was not at fault.
    • Scope of Application: It deals specifically with damage caused by space objects to the Earth’s surface and aircraft in flight. For damage to other space objects or personnel on space objects, liability is governed by the Outer Space Treaty of 1967.

      ISRO’s Efforts to Mitigate Space Debris

    • Unique Scientific Experiment: ISRO successfully conducted a dedicated commercial mission, placing seven Singaporean satellites into intended orbits on board a PSLV rocket.
    • Orbit-lowering Experiment: During this mission, ISRO performed a unique experiment, lowering the fourth stage of the rocket into a 300 km high orbit after placing customer satellites at an altitude of 536 km to mitigate space debris concerns.
    • Reducing Debris Duration: Thanks to the orbit-lowering experiment, the duration of the stage in space has been significantly reduced to “two months.”
    • Objectives of the Experiment: The experiment aims to address space debris mitigation problems and preserve valuable orbits for future satellite deployments.

    Conclusion

    • The incident of India’s space debris washing ashore in Australia highlights the importance of managing space debris to ensure the safety of Earth and its inhabitants.
    • ISRO’s efforts to mitigate space debris through conscious measures demonstrate responsible space exploration practices.

  • Perucetus Colossus Whale:  Heaviest Animal that Ever Lived

    Perucetus Colossus Whale

    Central Idea

    • Scientists have unearthed fossils of an ancient giant whale species named Perucetus colossus in Peru.
    • With each vertebra weighing over 100 kgs and ribs measuring nearly 5 feet long, this colossal whale poses a potential contender for the title of the heaviest animal to have ever lived.

    About Perucetus Colossus Whale

    • Discovery: Fossils of Perucetus colossus (lived approximately 39 million years ago) were found more than a decade ago in Peru’s Ica desert, a region known for its rich marine fossils.
    • Enormous Size: The whale’s estimated length was around 66 feet (20 meters), shorter than some blue whales that grow over 100 feet.
    • Unique Weight: The ancient giant’s dense and heavy bones contributed to its impressive estimated weight, making it a slow swimmer, most likely dwelling in shallow, coastal waters.
    • Feeding Habits: Without the discovery of the skull, scientists are uncertain about the whale’s diet, speculating it may have scavenged on the seafloor or consumed vast amounts of krill and other marine organisms.

    Significance

    • Heaviest Known Animal: If confirmed, Perucetus colossus could surpass the blue whale’s title as the heaviest known animal, living or extinct.
    • Evolutionary Significance: The species highlights the capacity of evolution to generate organisms with characteristics beyond human imagination.
    • Paleontological Mystery: The absence of skull and tooth remains leaves the feeding behavior and ecological role of this ancient giant open to further investigation.

  • DRACO Program: Nuclear Propulsion for Faster Space Travel

    draco

    Central Idea

    • NASA, in collaboration with DARPA, has selected Lockheed Martin to design and build a nuclear-powered propulsion system for DRACO program.
    • It is a breakthrough technology that could propel astronauts on a faster journey to Mars.

    What is DRACO Program?

    • DRACO stands for Demonstration Rocket for Agile Cislunar Operations.
    • It aims to leverage nuclear reactions to significantly reduce travel time, making interplanetary missions more efficient and safer.
    • The spacecraft will orbit at an altitude of approximately 700 to 1,994 kilometers, staying in orbit for over 300 years to ensure safe decay of radioactive elements.

    How it is different from conventional spacecraft?

    • DRACO, a nuclear thermal rocket (NTR) utilizes a nuclear reactor to heat propellant to extreme temperatures before exhausting the hot propellant through a nozzle to produce thrust.
    • Compared to conventional space propulsion technologies, NTRs offer a high thrust-to-weight ratio.
    • This thrust is around 10,000 times greater than electric propulsion, and a specific impulse (i.e., propellant efficiency) two-to-five times greater than in-space chemical propulsion.

    Benefits of DRACO

    • Shorter Journey to Mars: With nuclear-powered propulsion, astronauts could reach Mars in just three to four months, cutting the current travel time in half. The spacecraft could continue accelerating through the first half of the journey and then start slowing down again, reducing the need for extensive propellant storage.
    • Enhanced Fuel Efficiency: Nuclear reactions, using the splitting of uranium atoms, are far more efficient than conventional rocket engines that rely on fuel combustion. The DRACO engine features a nuclear reactor that heats hydrogen gas to generate thrust, offering greater fuel efficiency for interplanetary travel.
    • Reduced Exposure to Deep Space: Faster journeys to Mars would minimize astronauts’ exposure to the harsh environment of deep space, reducing potential risks and health hazards.

    Nuclear Propulsion: Historical Context

    • Legacy: The concept of nuclear propulsion for space is not new. In the 1950s and 1960s, Project Orion explored using atomic bomb explosions to accelerate spacecraft. NASA’s Project Rover and Project NERVA in the same era aimed to develop nuclear-thermal engines for space missions.
    • Advancements in Safety Protocols: Unlike earlier nuclear propulsion projects, DRACO uses a less-enriched form of uranium and incorporates advanced safety protocols. The reactor will only be activated in space to minimize the risk of a radioactive accident on Earth.

    Potential Applications and Future Testing:

    • Military Satellite Maneuvers: DARPA’s investment in the DRACO program indicates potential military applications, such as enabling rapid maneuvers of military satellites in Earth’s orbit.
    • Nuclear-Thermal Engine Test: Lockheed Martin plans to launch the demonstration spacecraft in late 2025 or early 2026.