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Type: Prelims Only

  • Chang’e-5 Lunar Probe

    China is preparing to launch an unmanned spacecraft to bring back lunar rocks, the first attempt by any nation to retrieve samples from the moon in four decades.

    Try this PYQ:

    Q.What do you understand by the term Aitken basin:

    (a) It is a desert in the southern Chile which is known to be the only location on earth where no rainfall takes place

    (b) It is an impact crater on the far side of the Moon

    (c) It is a Pacific coast basin, which is known to house large amounts of oil and gas

    (d) It is a deep hyper saline anoxic basin where no aquatic animals are found

    Chang’e-5 Probe

    • The Chang’e-5 probe, named after the mythical Chinese moon goddess, aims to shovel up lunar rocks and soil to help scientists learn about the moon’s origins, formation and volcanic activity on its surface.
    • The goal of the mission is to land in the Mons Rumker region of the moon, where it will operate for one lunar day, which is two weeks long.
    • It will collect 2 kg of surface material from a previously unexplored area known as Oceanus Procellarum — or “Ocean of Storms” — which consist of vast lava plain.
    • The original mission, planned for 2017, was delayed due to an engine failure in China’s Long March 5 launch rocket.
    • If successful, China will be only the third country to have retrieved samples from the moon, following the U.S. and the Soviet Union in the 1960s and 1970s.

    Significance of the mission

    • As per the Lunar and Planetary Institute, rocks found on the Moon are older than any that have been found on Earth and therefore they are valuable in providing information about the Earth and the Moon’s shared history.
    • Lunar samples can help to unravel some important questions in lunar science and astronomy, including the Moon’s age, its formation, the similarities and differences between the Earth and the Moon’s geologic features.
    • For instance, the shape, size, arrangement and composition of individual grains and crystals in a rock can tell scientists about its history, while the radioactive clock can tell them the rock’s age.
    • Further, tiny cracks in rocks can tell them about the radiation history of the Sun in the last 100,000 years.

  • Sentinel-6 Satellite

    The Copernicus Sentinel-6 Michael Freilich satellite, designed to monitor oceans, was launched from the in California.

    Try this MCQ:

    The Jason Continuity of Service (Jason-CS) Mission recently seen in news is aimed at observing:

    (a)Microgravity changes

    (b)Sea level rise

    (c)Cosmic radiation

    (d)Space debris

    Sentinel-6 Satellite

    • This is a part of the next mission dedicated to measuring changes in the global sea level.
    • It has been named after Dr Michael Freilich, who was the Director of NASA’s Earth Science Division from 2006-2019 and passed away in August this year.

    What is the mission?

    • The mission, called the Jason Continuity of Service (Jason-CS) mission, is designed to measure the height of the ocean, which is a key component in understanding how the Earth’s climate is changing.
    • The spacecraft consists of two satellites, the other, called Sentinel-6B, to be launched in 2025.
    • It has been developed jointly by the European Space Agency (ESA), NASA, and France’s National Centre for Space Studies (CNES).

    What will the satellite do?

    • The satellite will ensure the continuity of sea-level observations into the fourth decade and will provide measurements of global sea-level rise.
    • Since 1992, high-precision satellite altimeters have helped scientists understand how the ocean stores and distributes heat, water and carbon in the climate system.
    • Essentially, the satellite will send pulses to the Earth’s surface and measure how long they take to return to it, which will help scientists measure the sea surface height.
    • It will also measure water vapour along this path and find its position using GPS and ground-based lasers.

    Significance of the mission

    • As per NASA, it is possible to observe the height of the oceans on a global scale and monitor critical changes in ocean currents and heat storage only from space.
    • Data from satellites such as Sentinel-6 help scientists foresee the effects of the changing oceans on the climate.
    • Further, in order to measure and track changes in the oceanic heat budget, scientists need to know the ocean currents and heat storage of the oceans, which can be determined from the height of the sea surface.

  • Exercise SITMEX-20

    The second edition of the India, Thailand and Singapore trilateral naval exercise SITMEX-20 has concluded in the Andaman Sea.

    Exercise SITMEX-20

    • The SITMEX series of exercises are conducted to enhance mutual inter-operability and imbibing best practices between IN, Republic of Singapore Navy (RSN) and Royal Thai Navy (RTN).
    • The first edition of SITMEX, hosted by Indian Navy, was conducted off Port Blair in September 2019.
    • The 2020 edition of the exercise is being hosted by RSN.
    • The maritime drill witnessed a variety of exercises including naval manoeuvres, surface warfare exercises and weapon firings.
    • Besides improving inter-operability, SITMEX series of exercise also aims to strengthen mutual confidence and develop common understanding and procedures towards enhancing the overall maritime security in the region.

  • Places in news: Luxembourg

    Prime Minister has pitched for strengthening ties to further ramp up economic engagement between India and Luxembourg.

    Mark the location of Luxembourg. Since it is a landlocked country, there can be a question asking its bordering states.

    Luxembourg

    • Luxembourg is a small European country, landlocked by Belgium, France and Germany.
    • It’s mostly rural, with dense Ardennes forest and nature parks in the north, rocky gorges of the Mullerthal region in the east and the Moselle river valley in the southeast.
    • Its capital, Luxembourg City, is famed for its fortified medieval old town perched on sheer cliffs

    Why Luxembourg?

    • Luxembourg is one of the most important financial centres globally.
    • Several Indian companies have raised capital by issuing Global Depositary Receipts at the Luxembourg Stock Exchange.
    • Luxembourg-based investment funds hold substantial banking and asset management market share in portfolio investments in India.
    • It is also the third-largest source of Foreign Portfolio Investments (FPI) in India.

  • China’s use of ‘Microwave Weapons’

    The Indian Army has rejected a report in the British daily newspaper which claimed that the Chinese army had used “microwave weapons” to drive Indian soldiers away from their positions in eastern Ladakh.

    The use of non-lethal weapons for violence and mob control is a contested issue. Can you suggest some alternatives to it apart from the use of water cannon and teargas?

    What are “Microwave Weapons”?

    • Microwave weapons are supposed to be a type of direct energy weapons, which aim highly focused energy in the form of sonic, laser, or microwaves, at a target.
    • It uses a focussed beam of high-frequency electromagnetic radiation to heat the water in a human target’s skin, causing pain and discomfort.
    • In a microwave oven, an electron tube called a magnetron produces electromagnetic waves (microwaves) that bounce around the metal interior of the appliance, and are absorbed by the food.
    • The microwaves agitate the water molecules in the food, and their vibration produces heat that cooks the food.
    • Food with high water content cooks faster in a microwave often than drier foods.

    Which countries have these “microwave weapons”?

    • A number of countries are thought to have developed these weapons to target both humans and electronic systems.
    • According to a report, China had first put on display its “microwave weapon”, called Poly WB-1, at an air show in 2014.
    • The United States has also developed a prototype microwave-style weapon, which it calls the “Active Denial System”.

    How dangerous are these weapons?

    • Concerns have been raised on whether they can damage the eyes, or have a carcinogenic impact in the long term.
    • It is not clear yet how China intends to use such a weapon, and whether it can kill or cause lasting damage to human targets.

  • What is mRNA vaccine?

    The Moderna and Pfizer vaccines which recently announced their success use the same technology, based on messenger RNA, or mRNA.

    Try this PYQ first:

    Q.‘RNA interference (RNAi)’ technology has gained popularity in the last few years. Why?

    1. It is used in developing gene silencing therapies.
    2. It can be used in developing therapies for the treatment of cancer.
    3. It can be used to develop hormone replacement therapies.
    4. It can be used to produce crop plants that are resistant to viral pathogens.

    Select the correct answer using the code given below:

    (a) 1, 2 and 4

    (b) 2 and 3

    (c) 1 and 3

    (d) 1 and 4 only

    What is mRNA?

    • Messenger RNA (mRNA) is a single-stranded RNA (Ribo Nucleic Acid) molecule that is complementary to one of the DNA strands of a gene.
    • The mRNA is an RNA version of the gene that leaves the cell nucleus and moves to the cytoplasm where proteins are made.
    • During protein synthesis, an organelle called a ribosome moves along the mRNA, reads its base sequence, and uses the genetic code to translate each three-base triplet, or codon, into its corresponding amino acid.

    What is the mRNA vaccine?

    • Such vaccines make use of the messenger RNA molecules that tell the body’s cells what proteins to build.
    • The mRNA, in this case, is coded to tell the cells to recreate the spike protein of the coronavirus SARS-CoV-2, which causes Covid-19.
    • It is the spike protein — which appears as spikes on the surface of the coronavirus — that initiates the process of infection; it allows the virus to penetrate cells, after which it goes on to replicate.
    • A coronavirus vaccine based on mRNA, once injected into the body, will instruct the body’s cells to create copies of the spike protein.
    • In turn, this is expected to prompt the immune cells to create antibodies to fight it.
    • These antibodies will remain in the blood and fight the real virus if and when it infects the human body.

    Back2Basics: Ribo Nucleic Acid (RNA)

    • RNA is an important biological macromolecule that is present in all biological cells.
    • It is principally involved in the synthesis of proteins, carrying the messenger instructions from DNA, which itself contains the genetic instructions required for the development and maintenance of life.
    • In some viruses, RNA, rather than DNA, carries genetic information.
    • The type of RNA dictates the function that this molecule will have within the cell.
    • Aside from the coding region of messenger RNA (mRNA) molecules that will be translated into proteins, other cellular RNA elements are involved in different processes.

  • UAE’s Golden Visa Program

    The United Arab Emirates will extend its “golden” visa system — which grants 10-year residency in the West Asian nation — to certain professionals, specialised degree-holders and others.

    Do you know?

     India is the world’s top recipient of remittances with its diaspora sending a whopping $79 billion back home in 2018 a/c to the World Bank.

    Golden Visa Programme

    • The “Golden Card” programme is open to investors and “exceptional talents” such as doctors, engineers, scientists, students and artists.
    • The visa categories include:
    1. General investors who will be granted a 10 years visa
    2. Real estate investors, who can get a visa for 5 years Visa
    3. Entrepreneurs and talented professionals such as doctors, researchers and innovators: 10 years Visa
    4. Outstanding students — will also be permitted residency visas for 5 years
    • All categories of visas can be renewed upon expiry.

    Benefits for India

    • The Indian expatriate community is reportedly the largest ethnic community in the UAE, constituting roughly about 30 per cent of the country’s population of around nine million.
    • Though most of the Indians living in the UAE are employed, about 10 per cent of the Indian population constitutes dependent family members, according to the Indian Embassy.

  • Places in news: Tristan da Cunha

    The isolated UK Overseas Territory of Tristan da Cunha, the world’s most remote human settlement, has been declared the largest fully protected marine reserves in the Atlantic Ocean at 687,000 square kilometres.

    Note the location of Tristan da Cunha Islands in the Atlantic.

    Tristan da Cunha

    • Tristan da Cunha, which is inhabited by less than 300 humans is a small chain of islands over 6,000 miles from London in the South Atlantic and the water around the islands are considered to be the richest in the world.
    • The mountainous archipelago is home to tens of millions of seabirds and several unique land birds that are comparable to the Galapagos island finches.
    • The island group is also home to the World Heritage Site of Gough and Inaccessible Islands, which is one of the most important seabird islands in the world.

    Significance of protection

    • After joining the UK’s Blue Belt Programme, it will become the largest no-take zone in the Atlantic and the fourth largest on the planet.
    • This will close over 90 per cent of their waters to harmful activities such as bottom-trawling fishing, sand extraction and deep-sea mining.
    • The almost 700,000 square kilometres of the Marine Protection Zone (MPZ) is almost three times the size of the UK and will safeguard the future of sevengill sharks, Yellow-nosed albatrosses and rockhopper penguins.
    • MPZs involve the management of certain natural areas for biodiversity conservation or species protection and are created by delineating zones with permitted and non-permitted areas within that zone.

  • Leonid Meteor Shower

    The Leonid meteor showers are currently making their yearly appearance and will reach their peak in India on November 17 and 18.  In August this year, there was another meteor called Perseids Shower.

    Try this question from CSP 2014:

    Q.What is a coma, in the content of astronomy?

    (a) Bright half of material on the comet

    (b) Long tail of dust

    (c) Two asteroids orbiting each other

    (d) Two planets orbiting each other

    What is Leonid Meteor Shower?

    • Meteor showers are named after the constellation they appear to be coming from.
    • The Leonids originate from the constellation Leo the Lion– the groups of stars which form a lion’s mane.
    • They emerge from the comet Tempel-Tuttle, which requires 33 years to revolve once around the Sun.
    • These meteors are bright and among the fastest moving– travelling at speeds of 71 km per second.
    • During this year’s showers, peaks of around 10 to 15 meteors are expected to be seen every hour.
    • The Leonid showers include fireballs– bright and large meteors than can last longer than average meteors, and “earthgazers”– meteors which appear close to the horizon with colourful and long tails.

    What is a meteor shower?

    • On its journey around the Sun, the Earth passes through large swathes of cosmic debris.
    • The debris is essentially the remnants of comets — great frigid chunks of matter that leave behind dirty trails of rocks and ice that linger long after the comets themselves have passed.
    • As the Earth wades through this cloud of comet waste, the bits of debris create what appears from the ground to be a fireworks display in the sky — known as a meteor shower.
    • Several meteor showers can be seen around the year. According to NASA, over 30 meteor showers occur annually and are observable from the Earth.

    Back2Basics:

  • Gujarat Maritime Cluster Project at GIFT City

    The Gujarat Maritime Cluster coming up in the GIFT (Gujarat International Finance Tec-City) City at Gandhinagar will be a dedicated system to address logistics of ports and seaways.

    Try answering this:

    Q.What do you mean by Central Business Districts? How it is different from a Special Economic Zone (SEZ)?

    What is a Maritime Cluster?

    • The concept of the maritime cluster is new to India, but these clusters have been driving some of the most competitive ports of the world like Rotterdam, Singapore, Hong Kong, Oslo, Shanghai, and London.
    • Simply put, a maritime cluster is an agglomeration of firms, institutions, and businesses in the maritime sector that are geographically located close to each other.

    Gujarat Maritime Cluster

    • While the project was conceptualized back in 2007, it received in-principle approval from the state government only in 2015.
    • The Gujarat Maritime Board (GMB), a nodal agency of the Gujarat government, has been trying to develop such a cluster at GIFT City in the state capital Gandhinagar.
    • This cluster will initially consist of Gujarat-based shipping lines, freight forwarders, shipping agents, bunker suppliers, stevedores, and shipbrokers with chartering requirements.
    • In the second stage, the cluster would attempt to bring Indian ship owners, ship operators, Indian charterers and technical consultants scattered in cities like Mumbai, Chennai, and Delhi to Gujarat.
    • Thereafter it would target to attract global players in the maritime sphere.

    Need for a maritime cluster

    • This project will try to bring back businesses that have migrated over the years to foreign locations due to the absence of the right ecosystem in the country.
    • Gujarat has a lot of ports and handles 40 per cent of the country’s cargo, but it does not target the entire value chain.
    • Since we didn’t have the ecosystem, a lot of Indian companies have moved to foreign locations. For instance, Adani Group has the biggest port in Gujarat, but for their chartering needs, they are based out of Dubai.

    Back2Basics: GIFT City, Gandhinagar

    • GIFT city is India’s first operational smart city and international financial services centre (much like a modern IT park).
    • The idea for GIFT was conceived during the Vibrant Gujarat Global Investor Summit 2007 and the initial planning was done by East China Architectural Design & Research Institute (ECADI).
    • Currently approximately 225 units/companies are operational with more than 12000 professionals employed in the City.
    • The entire city is based on concept of FTTX (Fibre to the home / office).The fiber optic is laid in fault tolerant ring architecture so as to ensure maximum uptime of services.
    • Every building in GIFT City is an intelligent building. There is piped supply of cooking gas. India’s first city-level DCS (district cooling system) is also operational at GIFT City.