Mains Ready By December. Smash Mains & Smash PYQ Admissions Open
Talk to Mentor

Civilsdaily

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

  • Recombinant Variants of SARS-CoV-2

    The World Health Organization (WHO) has flagged the emergence of a new variant of the SARS-CoV-2 virus — the XE recombinant.

    How are variants created?

    • SARS-CoV-2, the virus that causes COVID-19, is an RNA virus which evolves by accumulating genetic errors in its genome.
    • These errors are produced when the virus infects a person and makes copies of itself inside the host’s cells.
    • These errors (otherwise called mutations) are therefore a by-product of replication of SARS-CoV-2 inside the cell and may be carried forward as the virus continues to infect people.
    • When viruses having a specific set of errors or mutations infect a number of people, this forms a cluster of infections descending from a common parental virus genome and is known as a lineage or a variant of the virus.

    Who name these variants?

    • The PANGO network, an open global consortium of researchers from across the world, provides a system for naming different lineages of SARS-CoV-2.
    • Pangolin was developed to implement the dynamic nomenclature of SARS-CoV-2 lineages, known as the Pango nomenclature.
    • These variants or lineages are widely followed by epidemiologists for tracking the evolution of SARS-CoV-2.

    What is a recombinant variant?

    • Apart from the errors in the virus genome, another process through which a virus increases its genetic diversity is recombination.
    • Recombination occurs when, in extremely rare situations, two different lineages of the virus co-infect the same cell in the host and exchange fragments of their individual genomes.
    • This generates a descendent variant having mutations that occurred in both the original lineages of the virus.
    • Recombination of lineages happens in a variety of other viruses, including those that cause influenza, as well as other coronaviruses.
    • Such recombination events occur typically in situations where two or more lineages of SARS-CoV-2 may be co-circulating in a certain region during the same time period.
    • This co-circulation of lineages provides an opportunity for recombination to occur between these two lineages of SARS-CoV-2.

    How many recombinant viruses have been detected?

    • While recombination events are not frequently observed for the SARS-CoV-2 virus, multiple recombinant lineages have been designated during the pandemic.
    • The recombinant lineages are annotated by PANGO with an ‘X’ followed by an alphabet which indicates the order of discovery.
    • Some previously detected and designated lineages include XA, a recombinant of B.1.1.7 (Alpha) and B.1.177 detected in the U.K., lineage XB detected in the U.S., and lineage XC detected in Japan, which is a recombinant of B.1.1.7 (Alpha) and AY.29 sublineage of Delta.
    • Three new recombinant lineages of SARS-CoV-2 have been recently designated by the PANGO network and are being monitored — XD, XE, and XF.
    • Although currently present in a very low proportion of genomes in the U.K., early data from the country show evidence of community transmission of XF.

    Are recombinant variants more deadly?

    • Although recombination has been detected in SARS-CoV-2, it has not yet impacted public health in a unique way.
    • There is little evidence to suggest that recombinant lineages have a varied clinical outcome compared to the currently dominant Omicron variant.
    • It is certain at this point in time that more data will be needed to ascertain the impact of these lineages on the epidemiology of COVID-19.

    What are the methods through which recombinants are identified?

    • Identifying and tracking recombinant lineages for SARS-CoV-2 is a challenging task.
    • This would require specialised tools and the availability of primary (or raw) data for genome sequences as similar variant combinations could also arise from inadvertent errors in sequencing or analysis as well as contamination of sequencing experiments.
    • A cluster of recombinant genomes can be designated a lineage name by the PANGO network if it can be confirmed that samples in the cluster have a common origin and descend from two individual lineages of SARS-CoV-2.
    • Additionally, there should be at least 5 genomes in the public domain belonging to the cluster, indicating an ongoing transmission of the lineage.
    • Furthermore, screening the sequencing data of these samples should show no signs of contamination and meet the definition of a recombinant.

    Way ahead

    • Since recombinations are extremely rare occurrences, it is unclear how and why the viruses recombine.
    • It is, therefore, important to track the recombination of SARS-CoV-2 lineages because it may lead to the generation of a viral lineage that is better at infecting people or transmitting from host to host.
    • Monitoring circulating SARS-CoV-2 genomes for evidence of recombination will help gain a better understanding of the ongoing evolution of SARS-CoV-2.
    • It will also provide information if a more “concerning” variant of the virus were to emerge.

     

    UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

  • Indian Antarctic Bill Introduced in Lok Sabha

    The government has introduced the ‘Antarctica Bill, 2022’ in the Lok Sabha that envisages regulating visits and activities to Antarctica as well potential disputes that may arise among those present on the continent.

    Indian Antarctic Bill, 2022

    Aims and objectives:

    • To provide for national measures to protect the Antarctic environment and associated ecosystems and to give effect to the Antarctic Treaty
    • To provide a harmonious policy framework for India’s Antarctic activities through a well-established legal mechanism
    • Facilitate activities of the Indian Antarctic programme, including management of Antarctic tourism and sustainable development of fisheries
    • To prohibit Indian expedition to Antarctica or carrying of certain activities in Antarctica without a permit or the written authorisation of another party to the protocol
    • To provide for inspection in India by an officer designated by the Central government as an Inspector and to constitute an inspection team to carry out inspections in Antarctica

    Key feature: Committee on Antarctic governance

    • It will empower the government to establish a committee on Antarctic governance and environmental protection to monitor, implement and ensure compliance with the relevant international laws, emissions standards and rules of protection.
    • The panel is to be headed by the secretary of the Ministry of Earth Sciences, as ex officio chairperson.
    • Among other roles, he has also been the vice-president of the Scientific Committee on Antarctic Research of the International Science Council since 2018.
    • The committee will have ten members from various ministries, departments and organizations of the Union government, plus two experts on the Antarctic environment or other relevant areas.

    About Antarctica Treaty

    • Antarctica has a geographical area of 14 million sq. km and has had no indigenous population (i.e. “Antarcticans” don’t exist).
    • However, a few thousand people reside there, in some 40 research stations spread across the continent, throughout the year.
    • In 1959, 12 countries – Argentina, Australia, Belgium, Chile, France, Japan, New Zealand, Norway, South Africa, the USSR, the UK and the US signed the ‘Antarctic Treaty’.
    • Their aim was to prevent the continent from being militarised and to establish it as a centre of peaceful activities.
    • Later, more countries, including India, have become party to the treaty, and today it counts more than 54 members.
    • The treaty requires each party to take appropriate measures within its competence, including the adoption of laws and regulations, administrative actions and enforcement measures, to ensure compliance with the protocol.
    • Countries also signed the ‘Protocol on Environmental Protection’ to the Antarctic Treaty in 1991, which designates Antarctica as a “natural reserve, devoted to peace and science”.

    Need for the Antarctic Legislation

    • The growing presence of Indian scientists in Antarctica and the commitment to Antarctic research and protection prompted the government to adopt domestic legislation consistent with its obligations as a member of the Antarctic Treaty system.
    • These laws will enable India’s courts to deal with disputes or crimes committed in parts of Antarctica, and help build credibility vis-à-vis India’s participation.

    India at the Poles

    • India maintains two research stations on the continent: ‘Maitri’ (commissioned in 1989) at Schirmacher Hills and ‘Bharati’ (2012) at Larsemann Hills.
    • It has also launched 41 scientific expeditions every year thus far.
    • Together with the ‘Himadri’ station in Svalbard, above the Arctic circle, India is among an elite group of countries with multiple research in the polar regions.

     

    UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

  • India’s Lithium Dependency Worries

    Lithium has been among the most sought-after mineral during the past few years, largely on the back of its usage in battery manufacturing.

    India is at odds with a major import source for the mineral, China.

    About Lithium

    • Lithium is a chemical element with the symbol Li and atomic number 3.
    • It is a soft, silvery-white alkali metal. Under standard conditions, it is the lightest metal and the lightest solid element.
    • Like all alkali metals, lithium is highly reactive and flammable and must be stored in mineral oil.
    • When cut, it exhibits a metallic lustre, but moist air corrodes it quickly to a dull silvery grey, then black tarnish.
    • Lithium metal is isolated electrolytically from a mixture of lithium chloride and potassium chloride.
    • It is a crucial building block of the lithium-ion rechargeable batteries that power electric vehicles (EVs), laptops and mobile phones.

    Lithium-ion batteries

    • A lithium-ion battery or Li-ion battery is a type of rechargeable battery.
    • They are commonly used for portable electronics and electric vehicles and are growing in popularity for military and aerospace applications.
    • A prototype Li-ion battery was developed by Akira Yoshino in 1985, based on earlier research by John Goodenough, M. Stanley Whittingham, Rachid Yazami and Koichi Mizushima during the 1970s–1980s.
    • In 2019, the Nobel Prize in Chemistry was given to this trio “for the development of lithium-ion batteries”.

    Global producers of lithium

    • Australia and Chile have swapped positions as the world’s leading lithium-producing country over the past decade. In 2019, the world’s Top 5 lithium producers were:
    1. Australia – 52.9% of global production
    2. Chile – 21.5%
    3. China – 9.7%
    4. Argentina – 8.3%
    5. Zimbabwe – 2.1%
    • The U.S. ranked 7th with 1.2% of the world’s lithium production.
    • In 2019, the world’s Top 5 lithium reserves by country were:
    1. Chile – 55.5% of the world’s total
    2. Australia – 18.1%
    3. Argentina – 11.0%
    4. China – 6.5%
    5. U.S. – 4.1%

    Why is India looking for lithium?

    • India has been scouting for lithium reserves since the Centre’s push to boost the adoption of electric vehicles (EVs) in the country.
    • The ₹18,000 crore production-linked incentive scheme for advanced chemistry cell (ACC) battery storage, a flagship incentive scheme for the industry has kicked off.
    • However, the supply of lithium, which is largely an imported product, has declined.
    • With India being in a diplomatic tussle with China, the supplies from the neighbouring country have declined and India too is looking for other import avenues.

    Why has the supply of lithium declined?

    • The supply of lithium has not been in line with the surge in demand from electric vehicle makers across the world.
    • China also is witnessing a mismatch between demand and supply, which has led to a rise in prices.

     

    UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

  • What is Project NETRA?

    The Indian Space Research Organisation (ISRO) is building up its orbital debris tracking capability by deploying new radars and optical telescopes under the Network for Space Objects Tracking and Analysis (NETRA) project.

    Project NETRA

    • The project will give India its own capability in space situational awareness (SSA) like the other space powers — which is used to ‘predict’ threats from debris to Indian satellites.
    • NETRA’s eventual goal is to capture the GEO, or geostationary orbit, scene at 36,000 km where communication satellites operate.
    • The initial SSA will first be for low-earth orbits or LEO which have remote-sensing spacecraft.
    • Under NETRA the ISRO plans to put up many observational facilities: connected radars, telescopes; data processing units and a control centre.
    • They can, among others, spot, track and catalogue objects as small as 10 cm, up to a range of 3,400 km and equal to a space orbit of around 2,000 km.
    • The NETRA effort would make India a part of international efforts towards tracking, warning about and mitigating space debris.

    What NETRA consists of?

    • In the plans are a high-precision, long range telescope in Leh and a radar in the North East.
    • Along with them, we will also use the Multi-Object Tracking Radar (MOTR) that we have put up at the Satish Dhawan Space Centre in Sriharikota, and the telescopes at Ponmudi and Mount Abu to get a broad SSA picture.
    • NORAD, or the North American Aerospace Defense Command, is an initiative of the U.S. and Canada that shares selective debris data with many countries.
    • The new SSA centre would consolidate debris tracking activities that are now spread across ISRO centres.
    • Currently there are 15 functional Indian communication satellites in the geostationary orbit of 36,000 km; 13 remote sensing satellites in LEO of up to 2,000 km; and eight navigation satellites in medium earth orbits.

    Why Space debris matters?

    • Space junk or debris consists of spent rocket stages, dead satellites, fragments of space objects and debris resulting from ASAT.
    • Hurtling at an average speed of 27,000 kmph in LEO, these objects pose a very real threat as collisions involving even centimetre-sized fragments can be lethal to satellites.
    • Last year, ISRO monitored 4,382 events in LEO and 3,148 events in the geostationary orbit where space objects closely approached Indian assets.
    • Fragments from the Fengyun-1C satellite (part of the anti-satellite test (ASAT) by China in 2007) and the Cosmos 2251-Iridium satellite collision in 2009 accounted for the maximum number of these threats.
    • The observations also covered 84 “close approaches of less than one km” between Starlink satellites and Indian assets.

    Enhancing Space situational awareness (SSA)

    • India, as a responsible space power, should have SSA as a part of a national capability, as in the U.S. This is a vital requirement for protecting our space assets and a force multiplier.
    • The SSA has a military quotient to it and adds a new ring to the country’s overall security.
    • It uses satellites, ground and air radars to secure its two countries against attacks from air, space or sea.
    • With long-range tracking radars, the SSA also provides us the capability of an early warning system against ballistic missiles coming in at a height.
    • Apart from radars and telescopes, he said India should also think of deploying satellites that track other satellites — as the U.S. and other space powers had done.
    • Combined with other elements of military intelligence SSA would help us to understand motives behind any suspicious orbit changes of other satellites and to know if they were spying on or harming our spacecraft.

     

    UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

  • What is T-Cell Immunity?

    A new study from Wuhan has studied the role of T-Cell Immunity against prolonged and sever COVID-19.

    What are T-Cells?

    • Like B cells, which produce antibodies, T cells are central players in the immune response to viral infection.
    • For your immune system to fight off any kind of invader, such as a virus, you need a kind of white blood cell called a B cell, which makes antibodies, and a similar-looking white blood cell called a T cell.
    • T cells can play different roles altogether.
    • They can act as “killer cells”, attacking cells which have been infected with a virus or another kind of pathogen, or they can act as “helper cells” by supporting B cells to produce antibodies.

    How do they function?

    • Alongside antibodies, the immune system produces a battalion of T cells that can target viruses.
    • Some of these, known as killer T cells (or CD8+ T cells), seek out and destroy cells that are infected with the virus.
    • Others, called helper T cells (or CD4+ T cells) are important for various immune functions, including stimulating the production of antibodies and killer T cells.
    • T cells do not prevent infection, because they kick into action only after a virus has infiltrated the body. But they are important for clearing an infection that has already started.
    • In the case of COVID-19, killer T cells could mean the difference between a mild infection and a severe one that requires hospital treatment.

    What did the latest research find?

    • The researchers found that neutralising antibodies were detectable even 12 months after infection in “most individuals”.
    • It remained stable 6-12 months after initial infection in people younger than 60 years.
    • The researchers found that “multifunctional T cell responses were detected for all SARS-CoV-2 viral proteins tested”.
    • And most importantly, the magnitude of T cell responses did not show any difference immaterial of how severe the disease was.
    • While the ability of antibodies to neutralise was nearly absent against the Beta variant, it was reduced in the case of the Delta variant.

    Neutralizing antibodies

    • SARS-CoV-2-specific neutralising antibody and T cell responses were retained 12 months after initial infection.
    • Neutralising antibodies to the D614G, Beta, and Delta were reduced compared with those for the original strain, and were diminished in general.
    • Memory T cell responses to the original strain were not disrupted by new variants.
    • The findings show that robust antibody and T cell immunity against SARS-CoV-2 is present in majority of recovered patients 12 months after moderate-to-critical infection.

    Robustness of antibodies

    • The study reveals the durability and robustness of the T cell responses against variants, including Delta, even after one year of infection.
    • Most importantly, the robust and longstanding T cell responses were seen in people who have not been reinfected or vaccinated.
    • This would mean even in the absence of vaccination, a person who has been infected by the virus even one year ago would have robust immune responses.
    • It would offer protection against disease progressing to a severe form requiring hospitalization.

     

    UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

  • Forging a social contract for data

    Context

    The Draft India Data Accessibility and Use Policy 2022 released in February for public consultation, is silent on the norms, rules, and mechanisms to bring to fruition its vision.

    Aims of the policy

    • The Draft Policy aims for harnessing public sector data for informed decision-making, citizen-centric delivery of public services, and economy-wide digital innovation.
    • It seeks to maximise access to and use of quality non-personal data (NPD) available with the public sector, overcoming a number of historical bottlenecks.
    • This GovTech 3.0 approach — to unlock the valuable resource of public sector data — does upgrade the OGD vision of the National Data Sharing and Accessibility Policy (NDSAP), 2012.
    • It seeks to harness data-based intelligence for governance and economic development.

    What is lacking in the draft policy?

    • Lacking in norms and rules: The Draft Policy is silent on the norms, rules, and mechanisms to bring to fruition its vision of data-supported social transformation.
    • Ignores the canons of RTI: Any attempt to promote meaningful citizen engagement with data cannot afford to ignore the canons of the Right to Information (RTI), and hence, the need for certain citizen data sets with personal identifiers to be in the public domain, towards making proactive disclosure meaningful.
    •  The unfinished task of the NDSAP in bringing coherence between restrictions on the availability of sensitive personal information in the public domain and India’s RTI, therefore, has been lost sight of.
    • Risks to group privacy: With respect to government-to-government data sharing for citizen-centric service delivery, the Draft Policy highlights that approved data inventories will be federated into a government-wide, searchable database.
    •  But even in the case of anonymised citizen data sets (that is no longer personal data), downstream processing can pose serious risks to group privacy.
    • Lack of data trusteeship framework: The Draft Policy adheres to the NDSAP paradigm of treating government agencies as ‘owners’ of the data sets they have collected and compiled instead of shifting to the trusteeship paradigm recommended by the 2020 Report of the MEITY Committee of Experts on non-personal data governance.
    • The lack of a data trusteeship framework gives government agencies unilateral privileges to determine the terms of data licensing.

    Suggestions

    • Taking on board a trusteeship-based approach, the proposed Draft Policy must pay attention to data quality, and ensure that licensing frameworks and any associated costs do not pose an impediment to data accessibility for non-commercial purposes.
    • Create common and interoperable data spaces: In the current context, where the most valuable data resources are held by the private sector, it is increasingly evident to policymakers that socioeconomic innovation depends on the state’s ability to catalyse wide-ranging data-sharing from both public and private sector actors across various sectors.
    • The European Union, for instance, has focused on the creation of common, interoperable data spaces to encourage voluntary data-sharing in specific domains such as health, energy and agriculture.
    • Mandatory data sharing arrangement: Creating the right conditions for voluntary data-sharing is a necessary, but not sufficient, condition for democratising data innovation.
    • In this regard, the data stewardship model for high-value data sets proposed by the MEITY’s Committee of Experts in their Report on Non-Personal Data Governance (2020) is instructive.
    • In this model, a government/not-for-profit organisation may request the Non-Personal Data Authority or NPDA for the creation of a high-value data set (only non-personal data) in a particular sector, demonstrating the specific public interest purpose.
    • Once such a request is approved by the NPDA, the data trustee has the right to request data-sharing from all major custodians of data sets corresponding to the high-value data set category in question – both public and private.

    Conclusion

    • What we need is a new social contract for data whereby:
    • a) the social commons of data are governed as an inappropriable commons that belong to all citizens;
    • b) the government is the custodian or trustee with fiduciary responsibility to promote data use for public good; and
    • c) democratisation of data value is ensured through accountable institutional mechanisms for data governance.

    UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

  • GSAT 7B and India’s other Military Satellites

    The Defence Acquisition Council (DAC) chaired by Defence Minister Rajnath Singh cleared the Acceptance of Necessity (AoN) for procurement of a GSAT 7B satellite.

    What are the GSAT 7 series satellites?

    • GSAT 7 satellites are advanced satellites developed by the ISRO to meet the communication needs of the defence services.
    • The satellite was injected into a geosynchronous transfer orbit (GTO) of 249 km perigee (nearest point to earth), 35,929 km apogee (farthest point to earth) and an inclination of 3.5 degree with respect to the equator.
    • The GSAT 7 satellite was launched in August 2013 from an Ariane 5 ECA rocket from Kourou in French Guiana.
    • It is a 2,650 kg satellite which has a footprint of nearly 2,000 nautical miles in the Indian Ocean region.

    Utility of this satellite

    • This satellite is mainly used by the Indian Navy for its communication needs.
    • The GSAT 7 provides a gamut of services for military communication needs, which includes low bit voice rate to high bit rate data facilities, including multi-band communications.
    • Named Rukmini, the satellite carries payloads in UHF, C-band and Ku-band, and helps the Navy to have a secure, real time communication link between its land establishments, surface ships, submarines and aircraft.

    What will be the role of the GSAT 7B satellite?

    • The GSAT 7B will primarily fulfil the communication needs of the Army.
    • Currently, the Army is using 30 per cent of the communication capabilities of the GSAT 7A satellite, which has been designed for the Indian Air Force (IAF).
    • The GSAT 7B will also help the Army enhance its surveillance in border areas.
    • While many features of this satellite are still a closely guarded secret, it is expected that the state of the art, multi-band, military-grade satellite shall be a shot in the arm for the communication and surveillance needs of the Army.

    What is the role of the GSAT 7A satellite, which is already operational?

    • The GSAT 7A was launched in 2018 from the Satish Dhawan Space Centre in Sriharikota.
    • It has gone a long way in boosting the connectivity between the ground radar stations, airbases and the airborne early warning and control aircraft (AEW&C) of the IAF.
    • It also helps in satellite controlled operations of unmanned aerial vehicles (UAVs) which gives a great deal of reliability to the operations as compared to ground-controlled operations.
    • This satellite has 10 channels in Ku band with switchable frequency for mobile users, one fixed Gregorian or parabolic antenna, and four steerable antennae.

    Future plans

    • A GSAT 7C satellite is on the cards for the IAF, and a proposal to this effect was cleared by the DAC in 2021.
    • This satellite would facilitate real time communication with IAF’s software defined radio communication sets.
    • It will increase the capability of the IAF to communicate beyond the line of sight in a secure mode.

    What other kinds of military satellites does India have?

    • An Electromagnetic Intelligence Gathering Satellite (EMISAT), developed by ISRO, was launched in April 2020 through a Polar Satellite Launch Vehicle (PSLV-C45).
    • It has an Electronic Intelligence (ELINT) package called Kautilya, which allows the interception of ground-based radar and also carries out electronic surveillance across India.
    • The ELINT package provides the capability in direction-finding of radar and fixing their locations.
    • It is placed in a 748-km orbit, and is said to be based on the Israeli satellite system.
    • This satellite circles the globe pole-to-pole, and is helpful in gathering information from radars of countries that have borders with India.
    • India also has a RISAT 2BR1 synthetic aperture radar imaging satellite, which was launched in December 2019 from Sriharikota.
    • It has the capability to operate in different modes including very high resolution imaging modes of 1×0.5 metre resolution and 0.5×0.3 m resolution with a swath of 5-10 km.

     

    UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

  • What is NASA’s Artemis I Mission?

    On March 17, the National Aeronautics and Space Administration (NASA) rolled out its Artemis I moon mission to the launchpad for testing at the Kennedy Space Centre in Florida, United States.

    What is the Artemis I Mission?

    • NASA’s Artemis mission is touted as the next generation of lunar exploration, and is named after the twin sister of Apollo from Greek mythology.
    • Artemis is also the goddess of the moon.
    • Artemis I is the first of NASA’s deep space exploration systems.
    • It is an uncrewed space mission where the spacecraft will launch on SLS — the most powerful rocket in the world — and travel 2,80,000 miles from the earth for over four to six weeks during the course of the mission.
    • The Orion spacecraft is going to remain in space without docking to a space station, longer than any ship for astronauts has ever done before.
    • The SLS rocket has been designed for space missions beyond the low-earth orbit and can carry crew or cargo to the moon and beyond.

    Key objectives of the mission

    • With the Artemis Mission, NASA aims to land humans on the moon by 2024, and it also plans to land the first woman and first person of colour on the moon.
    • With this mission, NASA aims to contribute to scientific discovery and economic benefits and inspire a new generation of explorers.
    • NASA will establish an Artemis Base Camp on the surface and a gateway in the lunar orbit to aid exploration by robots and astronauts.
    • The gateway is a critical component of NASA’s sustainable lunar operations and will serve as a multi-purpose outpost orbiting the moon.

    Other agencies involved

    • Other space agencies are also involved in the Artemis programme.
    • The Canadian Space Agency has committed to providing advanced robotics for the gateway.
    • The European Space Agency will provide the International Habitat and the ESPRIT module, which will deliver additional communications capabilities among other things.
    • The Japan Aerospace Exploration Agency plans to contribute habitation components and logistics resupply.

    What is the mission trajectory?

    • SLS and Orion under Artemis I will be launched from the Kennedy Space Centre in Florida, U.S. in the summer of 2022.
    • The spacecraft will deploy the interim cryogenic propulsion stage (ICPS), a liquid oxygen/liquid hydrogen-based propulsion system that will give Orion the thrust needed to leave the earth’s orbit and travel towards the moon.
    • On its way to the moon, Orion will be propelled by a service module provided by the European Space Agency (ESA).
    • The spacecraft will communicate with the control centre back on Earth through the deep-space network.
    • It will fly around 100 km above the surface of the moon and use its gravitational pull to propel Orion into an opposite deep orbit around 70,000 km from the moon, where it will stay for approximately six days.

    What are the future missions in the Artemis programme?

    • The second flight under the programme will have crew on board and will test Orion’s critical systems with humans onboard.
    • Eventually, the learnings from the Artemis programme will be utilised to send the first astronauts to Mars.
    • NASA plans on using the lunar orbit to gain the necessary experience to extend human exploration of space farther into the solar system.

     

    UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

  • Abel Prize awarded to American Mathematician

    The Norwegian Academy of Science and Letters has awarded the Abel prize for the year 2022 to American Mathematician Dennis Parnell Sullivan, for his contributions to topology in its broadest sense, and in particular its algebraic, geometric and dynamical aspects.

    Abel Prize

    • The Abel Prize is a prize awarded annually by the King of Norway to one or more outstanding mathematicians.
    • It is named after Norwegian mathematician Niels Henrik Abel (1802–1829) and directly modeled after the Nobel Prizes.
    • It comes with a monetary award of 7.5 million Norwegian kroner (NOK) (increased from 6 million NOK in 2019).
    • Its establishment was proposed by the Norwegian mathematician Sophus Lie when he learned that Alfred Nobel’s plans for annual prizes would not include a prize in mathematics.
    • The laureates are selected by the Abel Committee, the members of which are appointed by the Norwegian Academy of Science and Letters.

    Has any Indian won this prestigious prize?

    • R. Srinivasa Varadhan, an Indian-American citizen won the Abel Prize in the year 2007 for his valuable contribution in “probability theory and in particular for creating a unified theory of large deviation”.

     

    UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

  • Why the Russia-Ukraine crisis may lead to a shortage in Semiconductors?

    The global supply of semiconductors is now being threatened once again by the Ukraine crisis on account of supply of two key raw materials — neon and palladium — that are at a risk of being constrained.

    What are Semiconductors?

    • A semiconductor sits between a conductor and an insulator and is commonly used in the development of electronic chips, computing components, and devices.
    • It’s generally created using silicon, germanium, and other pure elements.
    • Semiconductors are created by adding impurities to the element.

    Why are neon and palladium important for chipmaking?

    (a) Neon

    • Neon gas is used in the photolithography process that is the most common method for fabricating integrated circuits.
    • Specifically, the neon gas is used in the laser machines that carve the integrated circuits.
    • But for use of neon gas in the semiconductor industry, the gas has to reach 99.99% purity levels — which makes it a rarity.
    • More than half of semiconductor-grade neon comes from Ukrainian companies Incas and Cryoin.

    (b) Palladium

    • It is used for multiple purposes in semiconductor and electronic manufacturing.
    • It is used to coat electrodes that help control flow of electricity.
    • It is also used in plating of microprocessors and printed circuit boards — which is an essential process of chip making.
    • Russia accounts for nearly half the global supplies of palladium and the multiple trade sanctions on Moscow threaten to constrain the availability of the element.

    Why was there a shortage in semiconductors?

    • The trigger point was the beginning of the Covid-19 pandemic and the subsequent lockdowns across the world that forced chip-making facilities to shut in countries like Japan, South Korea, China and the US.
    • A key feature in a chip shortage is that it almost always causes cascading effects, given that the first one creates pent-up demand that becomes the cause for the follow-up famine.

    How is the Russia-Ukraine crisis protracting this shortage?

    • Palladium and neon are two resources that are key to the production of semiconductor chips.
    • Russia supplies over 40 per cent of world’s palladium and Ukraine produces 70 per cent of neon.

    How long will the semiconductor shortage last?

    • The answer to that question is a function of two variables:
    1. Existing stockpiles of these raw materials with chip manufacturers
    2. Time for which the crisis in Ukraine prevails
    • If a deal is not brokered in the coming months, expect the chip shortage to get worse and for industries highly dependent on them to be similarly affected.
    • This means significant risks are ahead for many automakers, electronic device manufacturers, phone makers, and many other sectors that are increasingly reliant on chips for their products to work.

     

    UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)