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Type: Prelims Only

  • SpaceX-NASA’s Crew-1 Mission

    SpaceX’s Crew Dragon spacecraft will lift off carrying a crew of four people to the International Space Station (ISS) on a six-month-long mission.

    What is the Crew-1 Mission?

    • The mission is part of NASA’s Commercial Crew Program, whose objective is to make access to space easier in terms of its cost.
    • This will carry four astronauts on NASA missions, maintaining a space station crew of seven to maximize time dedicated to scientific research on the orbiting laboratory.
    • With this, the cargo and crew can be easily transported to and from the ISS, enabling greater scientific research.
    • At the ISS, the crew will join the members of Expedition 64, the space station crew currently in residence at the ISS.

    Mission goals

    • The goals of the mission are the same as that of Expedition 1 that lifted off 20 years ago.
    • NASA has called both of these ISS missions “historic”.
    • At the ISS, the Crew-1 team will join members of Expedition 64 and conduct microgravity studies and deliver new science hardware to ISS.
    • Once in orbit, NASA astronauts will collect samples to provide data to scientists back on Earth so that they can continue to study how dietary changes affect his body.
    • The crew will also study the effects of dietary improvements on immune function and the gut microbiome and how those improvements can help crews adapt to spaceflight.

    The term micro-g environment is more or less synonymous with the terms weightlessness and zero-g, but with an emphasis on the fact that g-forces are never exactly zero—just very small.

  • Thirty Metre Telescope (TMT)

    With regime change in the US, hopes have been raised for the Thirty Meter Telescope (TMT) in Hawaii. India is one of the partners in the ambitious next-generation observatory project along with the US, Canada, China and Japan.

    Try this PYQ:

    Q.“Event Horizon” is related to:

    (a) Telescope

    (b) Black hole

    (c) Solar glares

    (d) None of the above

    Thirty Metre Telescope

    • The TMT is a proposed astronomical observatory with an extremely large telescope (ELT) that has become the source of controversy over its planned location on Mauna Kea on the island of Hawaii.
    • It is being built by an international collaboration of government organisations and educational institutions, at a cost of $1.4 billion.
    • “Thirty Metre” refers to the 30-metre diameter of the mirror, with 492 segments of glass pieced together, which makes it three times as wide as the world’s largest existing visible-light telescope.
    • The larger the mirror, the more light a telescope can collect, which means, in turn, that it can “see” farther, fainter objects.
    • It would be more than 200 times more sensitive than current telescopes and would be able to resolve objects 12 times better than the Hubble Space Telescope.

    Utility of the telescope

    • One of its key uses will be the study of exoplanets, many of which have been detected in the last few years, and whether their atmospheres contain water vapour or methane — the signatures of possible life.
    • For the first time in history, this telescope will be capable of detecting extraterrestrial life.
    • The study of black holes is another objective.
    • While these have been observed in detail within the Milky Way, the next galaxy is 100 times farther away; the Thirty Metre Telescope will help bring them closer.

  • GRACE-FO Mission

    The GRACE-FO mission has mapped deviation in Earth’s surface mass and spatial variations in the rate of sea-level rise between 1993 and 2018 using altimetric and gravimetric analysis.

    Try this MCQ:

    Q.NASA’s VIPER mission sometimes seen in news is related to the study of-

    a)Moon

    b)Venus

    c)Sun

    d)None of these

    GRACE-FO Mission

    • The Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) mission launched in 2018 is a partnership between NASA and the German Research Centre for Geosciences (GFZ).
    • It is a successor to the original GRACE mission, which orbited Earth from 2002-2017.
    • It carries on the extremely successful work of its predecessor while testing a new technology designed to dramatically improve the already remarkable precision of its measurement system.

    How did NASA measure this?

    (1) Altimetric Study

    • Altimetry missions are used to know the ocean surface topography — the shape and height of the ocean’s peaks and valleys.
    • Radar altimeters continually send out pulses of radio waves (microwaves) that bounce off the surface of the ocean and reflect back toward the satellite.
    • The instrument calculates the time it takes for the signal to return, while also tracking the precise location of the satellite in space. From this, scientists can derive the height of the sea surface directly underneath the satellite.

    (2) Gravimetric Study

    • Gravimetry is a process of using ice’s gravitational pull on a pair of satellites. It helps estimate ice loss and its contribution to sea-level rise.
    • The twin satellites in each mission detect subtle shifts in Earth’s gravity field.
    • The strength of gravitational forces is determined by mass, so changes in Earth’s gravity field indicate a change or redistribution in mass.

  • Regulation of Other Service Providers (OSP)

    The Department of Telecom (DoT) has eased the rules for registration, submission of bank guarantee and other norms for other service providers (OSP) in the business process outsourcing (BPO) and information technology-enabled services (ITes).

    Recall your basics from NCERT books… Sectors of the Economy … More precisely, the Tertiary, Quaternary and Quinary Sectors.

    What are Other Service Providers (OSP)?

    • OSPs or other service providers are companies or firms which provide secondary or tertiary services such as telemarketing, telebanking or telemedicine for various companies, banks or hospital chains, respectively.
    • As computers made their foray into the Indian information technology space, a number of such OSPs, which were either voice or non-voice based, came into the market.
    • The sector required minimal investment but gave great returns in business, which prompted a large number of individuals and companies to float other service providing firms.

    Registration of OSPs

    • The new telecom policy of 1999 suggested that all OSPs register themselves so that the government could keep a check on the usage of its resources.
    • Since most of these firms used leased telephone lines, this in turn used the telecom spectrum auctioned by the DoT, hence facing the regulation.
    • Further, the registration was also made mandatory to ensure that firms did not establish fake OSPs which swindled customers under the garb of providing telebanking and other such sensitive services.

    What were the various registration norms for OSPs?

    • To start services in India, OSPs had to register themselves with the DoT and declare to the government as to how many employees were working in the firm as well as the area of service it was engaged in.
    • For example, if a firm wished to provide telebanking services, it had to tell the government the number of people working with the BPO and the state that firms catered to.
    • Further, the OSPs also have to declare whether they were providing services to domestic firms or international firms, and the nature of services being offered.

    Significance of the new guidelines

    • The guidelines will make it easier for BPOs and ITes firms in many ways, such as cutting down on the cost of location, rent for premises and other ancillary costs such as electricity and internet bills.
    • The doing away of registration norms will also mean that there will be no renewal of such licenses and therefore will invite foreign companies to set up or expand their other service providing units in India.
    • This change, in line with the norms of countries in the West can also allow employees to opt for freelancing for more than one company while working from home, thereby attracting more workers in the sector.

  • UN Advisory Committee on Administrative and Budgetary Questions (ACABQ)

    In a significant victory for India at the United Nations, Indian diplomat Vidisha Maitra was elected to the U.N. Advisory Committee on Administrative and Budgetary Questions (ACABQ).

    Try this PYQ:

    Which one of the following is not related to the United Nations?
    (a) Multilateral Investment Guarantee Agency
    (b) International Finance Corporation
    (c) International Centre for Settlement of Investment Disputes
    (d) Bank for International Settlements

    About UN- ACABQ

    • It is a subsidiary organ of the General Assembly. The 193-member Assembly appoints members of the Advisory Committee.
    • ACABQ consists of 16 members appointed by the Assembly in their individual capacity.
    • Members are selected on the basis of broad geographical representation, personal qualifications and experience.

    Its functions

    • ACABQ ensures that fund contributions to the U.N. system are put to good effect and that mandates are properly funded.
    • It examines, on behalf of the General Assembly, the administrative budgets of the specialised agencies and proposals for financial arrangements with such agencies; and to consider and report to the General Assembly on the auditors’ reports on the accounts of the UN and of the specialised agencies.

    Why is the seat given to India?

    • India has a stellar record of bringing professional auditing experience to the U.N. and contributing outstanding professionals to U.N. bodies.
    • With India’s rising obligations in both assessed as well as voluntary contributions to the U.N., India holds key responsibility of administrative and budgetary management of U.N.

    Significance of the move

    • The victory gives a strong display of support by U.N. member states for India.
    • It comes as India gets ready to sit in the U.N. Security Council as a non-permanent member for a two-year term beginning January 2021.

  • What is Einstein’s Eclipse?

    This newscard is an excerpt from the original article published in the DownToEarth.

    Einstein’s Eclipse

    • Albert Einstein’s prediction of the bending of light by the gravity of the Sun, one of the components of his general theory of relativity, can be tested during a solar eclipse.
    • Following an unsuccessful attempt to validate this prediction during the Solar eclipse of June 8, 1918, two expeditions were made to measure positions of stars during this eclipse.
    • The eclipse presented a rare chance to verify one of the essential consequences of general relativity, the bending of light by gravity.
    • Einstein’s theory predicted that rays of light passing near a massive body in space would be visibly bent as they followed the curve in space-time created by the body’s mass.
    • In the case of a ray of light originating from a distant star and passing near the edge of the Sun, Einstein calculated a deflection of about 1.75 arc seconds.

    Try this PYQ:

    Q.Consider the following phenomena:

    1. Light is affected by gravity.
    2. The Universe is constantly expanding.
    3. Matter warps its surrounding space-time.

    Which of the above is/are the predictions of Albert Einstein’s General Theory of Relativity, often discussed in media?

    (a) 1 and 2 only

    (b) 3 only

    (c) 1 and 3 only

    (d) 1, 2 and 3

    What was studied during the eclipse?

    • Einstein published his theory and predictions in 1915, and in 1919 the British physicist Sir Arthur Eddington took advantage of a total solar eclipse to attempt to detect the shifting images of stars near the limb of the sun.
    • The problem was that during totality the sky does not get perfectly dark, and only a handful of stars were visible near the sun from which to make the measurement.
    • The darkness of an eclipse, though, would allow the astronomers to observe and photograph the field of stars around the Sun.
    • By comparing the photographs with reference images taken at night, it would be possible to measure how much the presence of the Sun had bent the stars’ light.
    • Conveniently, a cluster of bright stars known as the Hyades would appear near the Sun during the eclipse.

    Significance

    • After several months of analysis, researchers announced in November that their findings supported the theory of general relativity.
    • Media coverage tended to dwell on the recondite nature of Einstein’s work, emphasizing that there were only a handful of people in the world who could understand it.
    • It could be argued that 1919 was the year when Einstein’s name became a byword for superhuman intellectual ability—making possible the small industry of Einstein-themed merchandise that still exists today.

    Back2Basics: General Relativity

    • Einstein’s theory proposes that gravity is not an actual force, but is instead a geometric distortion of space-time not predicted by ordinary Newtonian physics.
    • The more mass you have to produce the gravity in a body, the more distortion you get.
    • This distortion changes the trajectories of objects moving through space, and even the paths of light rays, as they pass close-by the massive body.
    • Even so, this effect is very feeble for an object as massive as our own sun, so it takes enormous care to even detect that it is occurring.
    • General Relativity predicts how much of this bending of light you should see given the mass of the object.
    • Called ‘gravitational lensing’ it has been detected on the cosmological scale as entire clusters of galaxies distort the light from more distant galaxies behind them as this image from the Hubble Space Telescope shows.

  • Ghogha-Hazira Ferry Service

    PM has virtually inaugurated the Ghogha-Hazira Ro-Pax ferry service in Gujarat.

    Try this question from CSP 2016:

    Q.Recently, which of the following States has explored the possibility of constructing an artificial inland port to be connected to the sea by a long navigational channel?

    (a) Andhra Pradesh

    (b) Chhattisgarh

    (c) Karnataka

    (d) Rajasthan

    Ghogha-Hazira Ferry Service

    • It will work as a Gateway to South Gujarat and Saurashtra region. It will reduce the distance between Ghogha and Hazira from 370 km to 90 km.
    • It has a load capacity of 30 trucks (of 50 MT each) on the main deck, 100 passenger cars on the upper deck and 500 passengers plus 34 crew and hospitality staff on the passenger deck.
    • The reduced cargo travel time from 10 to 12 hours to about four hours will result in huge savings of fuel (approx 9,000 litres per day) and lower the maintenance cost of vehicles drastically.
    • The ferry service, while making three round trips per day on the route, would annually transport about 5 lakh passengers, 80,000 passenger vehicles, 50,000 two-wheelers and 30,000 trucks.

    Benefits

    • It will reduce the fatigue of truck drivers and enhance their incomes by giving them more opportunity to do extra trips.
    • It will give an impetus to the tourism industry with ease of access to the Saurashtra region and lead to the creation of new job opportunities.
    • With the onset of ferry services, the port sector, furniture and fertilizer industries in Saurashtra and Kutch region will get a big boost.
    • Eco-tourism and religious-tourism in Gujarat, especially in Porbandar, Somnath, Dwarka and Palitana will grow exponentially.
    • The benefits of enhanced connectivity through this ferry service will also result in increased inflow of tourists in the famous Asiatic lion wildlife sanctuary at Gir.

  • Pusa Bio-Decomposer

    Delhi CM has said that the “Pusa bio-decomposer” is a success in Delhi and he will inform the Supreme Court that it is an effective way to prevent stubble burning.

    Pusa Bio-decomposer provides a unique alternative against the stubble burning practices.

    Pusa Bio-decomposer

    • It is a solution developed by the scientists at the Indian Agricultural Research Institute, Pusa, which can turn crop residue into manure in 15 to 20 days and therefore, can prevent stubble burning.
    • It involves making a liquid formulation using Pusa decomposer capsules and readily available inputs, fermenting it over 8-10 days, and then spraying the mixture on fields.
    • It is a mix of seven fungi that produce enzymes to digest cellulose, lignin and pectin in paddy straw.
    • The fungi thrive at 30-32 degree Celsius, which is the temperature prevailing when paddy is harvested and wheat is sown.

    Back2Basics: Decomposition

    • Decomposition refers to a biological process of breaking down organic material into smaller constituent parts.
    • The decomposition of organic substances is ecologically significant. It plays a part in the nutrient cycle. It is an essential process of recycling matter in the biosphere.
    • A decomposer is an organism whose ecological function involves the recycling of nutrients by performing the natural process of decomposition as it feeds on decaying organisms.
    • Examples of decomposers are fungi and bacteria that obtain their nutrients from a dead plant or animal material.
    • They break down cells of dead plants and animals into simpler substances, which become organic nutrients available to the ecosystem.

  • Char-chaporis of Assam

    A proposed museum reflecting the “culture and heritage of the people living in char-chaporis” has stirred up a controversy in Assam.

    Do you know?

    Phumdis are a series of floating islands, exclusive to the Loktak Lake in Manipur. They cover a substantial part of the lake area and are heterogeneous masses of vegetation, soil and organic matter, in different stages of decay.

    What are char-chaporis?

    • A char is a floating island while chaporis are low-lying flood-prone riverbanks.
    • They are used interchangeably as they keep changing shapes — a char can become a chapori, or vice versa, depending on the push and pull of the Brahmaputra.
    • Prone to floods and erosion, these areas are marked by low development indices.
    • While Bengali-origin Muslims primarily occupy these islands, other communities such as Misings, Deoris, Kocharis, Nepalis also live here.
    • In the popular imagination, however, chars have become synonymous to the Bengali-speaking Muslims of dubious nationality.

    Who are the Miyas?

    • The ‘Miya’ community comprises descendants of Muslim migrants from East Bengal (now Bangladesh) to Assam.
    • They came to be referred to as ‘Miyas’, often in a derogatory manner.
    • The community migrated in several waves — starting with the British annexation of Assam in 1826, and continuing into Partition and the 1971 Bangladesh Liberation War.

  • Punjab Connection of the Irish freedom movement

    Ireland is commemorating 100 years of the mutiny by a British Army battalion stationed in Jalandhar and Solan in Punjab in support of the Irish freedom movement.

    Try this PYQ:

    Q.With reference to the Indian freedom struggle, consider the following events:

    1. Mutiny in Royal Indian Navy
    2. Quit India Movement launched
    3. Second Round Table Conference

    What is the correct chronological sequence of the above events?

    (a) 1-2-3

    (b) 2-1-3

    (c) 3-2-1

    (d) 3-1-2

    Irish mutiny in India

    • The Connaught Rangers were raised during the British Army reforms of 1881.
    • A British Army battalion belonging to the Connaught Rangers was the one in which Irish soldiers mutinied in Jalandhar and Solan in Punjab.
    • Solan now lies in Himachal Pradesh but in 1920 it was part of Punjab. The Ist Battalion of the Connaught Rangers was stationed in Jalandhar since January 1920 after it had taken part in the First World War.

    Why did the mutiny take place?

    • The troops were protesting against the behaviour of the ‘Black and Tans’ during the Irish War of Independence (1919-22).
    • The Black and Tan were members of the Irish constabulary which had been recruited from Great Britain and mostly comprised demobilized soldiers who had fought in the First World War.
    • The Irish soldiers felt that they must rise in solidarity with their compatriots back in Ireland and hence in June and July 1920 some of the regiment’s men mutinied.
    • Some of the mutinied soldiers were later put through a court-martial.

    Who were the Black and Tans?

    • They were constables recruited into the Royal Irish Constabulary (RIC) as reinforcements during the Irish War of Independence.
    • Recruitment began in Great Britain in January 1920 and about 10,000 men enlisted during the conflict.
    • The vast majority were unemployed former soldiers from Great Britain who fought in the First World War, although some were from Ireland.