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  • Species in news: Indian Pangolin

     

    The Madhya Pradesh forest department has radio-tagged an Indian Pangolin (Manis crassicaudata) for the first time.

    Pangolins

    IUCN status: Endangered

    • India is home to two species of pangolin.
    • While the Chinese Pangolin (Manis pentadactyla) is found in northeastern India, the Indian Pangolin is distributed in other parts of the country as well as Sri Lanka, Bangladesh and Pakistan.
    • Both these species are protected and are listed under the Schedule I Part I of the Wild Life (Protection) Act, 1972 and under Appendix I of the Convention on International Trade in Endangered Species (CITES).
    • Commonly known as ‘scaly anteaters’, the toothless animals are unique, a result of millions of years of evolution.
    • Pangolins evolved scales as a means of protection. When threatened by big carnivores like lions or tigers they usually curl into a ball.
    • The scales defend them against dental attacks from the predators.

    Why this radio-tagging?

    • The radio-tagging aims to know its ecology and develop an effective conservation plan for it.
    • The radio-tagging is part of a joint project by the department and non-profit, the Wildlife Conservation Trust (WCT) that also involves the species’ monitoring apart from other activities.

    Why protect Pangolins?

    • Pangolins are currently the most trafficked wildlife species in the world.
    • These Scales has now become the main cause of the pangolin’s disappearance.
    • The scales are in high demand in China, where they are used in traditional Chinese medicine.
    • Pangolin meat is also in high demand in China and Southeast Asia.
    • Consequently, pangolins have seen a rapid reduction in population globally. The projected population declines range from 50 per cent to 80 per cent across the genus.

  • The ‘Pale Blue Dot’

     

    The Jet Propulsion Laboratory of the NASA published a new version of the image of Pale Blue Dot.

    Pale Blue Dot

    • The ‘Pale Blue Dot’ is one of the most iconic images in the history of astronomy.
    • It shows Earth as a single bright blue pixel in empty space within a strand of sun rays, some of which are scattering from and enlightening the planet.
    • The original image was taken by the Voyager 1 mission spacecraft on February 14, 1990 when it was just beyond Saturn.
    • At the behest of astronomer Carl Sagan, the cameras were turned towards Earth one final time to capture the image.
    • After this, the cameras and other instruments on the craft were turned off to ensure its longevity.

    About Voyager 1

    • Voyager 1 is a space probe launched by NASA on September 5, 1977.
    • Having operated for more than 42 years, the spacecraft still communicates with the Deep Space Network to receive routine commands and to transmit data to Earth.
    • At a distance of 148.67 AU (22.2 billion km) from Earth as of January 19, 2020 it is the most distant man-made object from Earth.
    • The probe’s objectives included flybys of Jupiter, Saturn, and Saturn’s largest moon, Titan.

    The Family Portrait of the Solar System

    • The Pale blue dot image was a part of series of 60 images designed to produce what the mission called the ‘Family Portrait of the Solar System’.
    • This sequence of camera-pointing commands returned images of six of the solar system’s planets, as well as the Sun.

  • In news: Yaravirus

    In a lake in Brazil, researchers have discovered a virus that they find unusual and intriguing.

    Yaravirus

    • The Yaravirus infects amoeba and has genes that have not been described before, something that could challenge how DNA viruses are classified.
    • It has a puzzling origin and phylogeny (evolutionary relationship).
    • Because of the Yaravirus’s small size, it was unlike other viruses that infect amoeba and they named it as a tribute to Yara, the “mother of waters” in the mythological stories of the Tupi-Guarani indigenous tribes.
    • The virus does not infect human cells, according to the researchers.

  • SuperCam on Mars Rover 2020

     

    In its mission to Mars this summer, NASA is sending a new laser-toting robot called SuperCam as one of seven instruments aboard the Mars 2020 rover.

    SuperCam

    • Called SuperCam, the robot is used for studying mineralogy and chemistry from up to about 7 metres away.
    • It might help scientists find signs of fossilized microbial life on Mars.
    • SuperCam packs what would typically require several sizable pieces of equipment into something no bigger than a cereal box.
    • It fires a pulsed laser beam out of the rover’s mast to vaporise small portions of rock from a distance, providing information that will be essential to the mission’s success.

    NASA lists five things to know

    • From more than 7 m away, SuperCam can fire a laser to study rock targets smaller than a pencil point. That lets the rover study spots it can’t reach with its arm.
    • SuperCam looks at rock textures and chemicals to find those that formed or changed in water on Mars long ago.
    • SuperCam looks at different rock and “soil” types to find ones that could preserve signs of past microbial life on Mars — if any ever existed.
    • For the benefit of future explorers, SuperCam identifies which elements in the Martian dust may be harmful to humans.
    • Scientists can learn about how atmospheric molecules, water ice, and dust absorb or reflect solar radiation. This helps predict Martian weather better.

  • Protected Special Agriculture Zone

    The Cauvery delta region in Tamil Nadu will be declared as ‘Protected Special Agricultural Zone’ (PSAZ) by the TN govt.

    Cauvery delta PSAZ

    • Declaring PSAZ ensures that particular region will not be granted permission for any new projects like those related to hydrocarbons.
    • Only Agro based Industries would be given permission to be built.
    • The special protection will be bestowed on Cauvery Delta districts such as Thanjavur, Tiruvarur, Nagappattinam, Pudukottai, Cuddalore, Ariyalur, Karur and Tiruchirappalli districts.

    Significance of the move

    • The Cauvery Delta Region is Tamil Nadu’s rice bowl comprising above eight districts.
    • It is just and reasonable that projects like hydrocarbon exploration have raised concerns among farmers and other agriculture-based labourers.
    • Drilling for extraction of oil and gas in these regions that hampers agriculture and posing much environmental impact or health hazards will be stopped immediately.

  • Indian nationals living abroad

    There are over 1.36 crore Indian nationals living abroad, according to data tabled by the Ministry of External Affairs in Lok Sabha.

    Indians abroad

    • The highest number of Indians abroad are living in the United Arab Emirates, where the 34,20,000 Indians comprise about one-fourth of all Indians abroad.
    • The UAE is followed by Saudi Arabia (25,94,947), the US (12,80,000), Kuwait (10,29,861), Oman (7,79,351), Qatar (7,56,062), Nepal (5,00,000), UK (3,51,000), Singapore (3,50,000) and Bahrain (3,23,292).
    • The CPV (Consular, Passport and Visa) division of the ministry is the nodal division that coordinates with all missions / posts abroad regarding transportation of the mortal remains of Indians from abroad to their hometowns in India.

    Total remittances recieved

    • Citing RBI data, the ministry said that during 2018-2019, $76.4 billion was received as remittances from Indians abroad.
    • During 2019-2020 (April-September), $41.9 billion was received.

  • New rice variety: Muktoshri (IET 21845)

    Researchers have developed and commercialized a rice variety that is resistant to arsenic.

    Muktoshri

    • The new rice variety, Muktoshri — also called IET 21845 —, was developed jointly by the Rice Research Station at Chinsurah coming under West Bengal’s Agriculture Department and the National Botanical Research Institute, Lucknow.
    • A gazette notification for the commercial use of Muktoshri was made by West Bengal last year.
    • During our multilocational trials, it was found that this variety uptakes very less amount of arsenic from soil and water in comparison to other varieties of rice.
    • The rice is long and thin, and aromatic. Across the State, thousands of farmers have started cultivation, even in areas where arsenic in groundwater is not an issue, because of the aroma and the yield.

    Significance

    • West Bengal is among the States with the highest concentration of arsenic in groundwater, with as many as 83 blocks across seven districts having higher arsenic levels than permissible limits.
    • Several studies have shown that arsenic from groundwater and the soil can enter the food chain through paddy.
    • According to the WHO, long-term exposure to arsenic, mainly through drinking water and food, can lead to poisoning. Skin lesions and skin cancer are the most characteristic effects.

  • What is Fermentophone?

     

    Fermentation, the chemical breakdown of a substance by microorganisms such as bacteria or yeasts, results in some of the most delicious foods and beverages, including cheese, chocolate and wine.  Now, research has shown it can result in music, too.

    Fermentophone

    • The chemical processes of fermentation can be used to create spontaneous tunes.
    • Researchers has built multiple art exhibits called Fermentophone to showcase how fermentation can make music.
    • First, different fruits and veggies are placed in glass jars and fermented.
    • As the fermentation kicks off, the yeast — or bacteria — present in the food chows down on the foods’ sugars, which results in the release of carbon dioxide bubbles.
    • The release of these bubbles creates a tiny sound, which is picked up by underwater microphones.
    • A computer processes the sounds and, with the help of algorithms plugged in, electronic music is created.

  • Agartala-Akhaura Railway Link

     

    The landmark Agartala-Akhaura railway line to connect the northeastern region with Bangladesh is expected to be ready by the end of 2021.

    About Agartala-Akhaura Link

    • MoU for Indo-Bangla Railway connectivity project viz. Agartala-Akhaura new Broad Gauge line (15.06 Km) was signed on 16.02.2013 between India and Bangladesh.
    • The link will connect Gangasagar in Bangladesh to Nischintapur in India and from there to Agartala.
    • The Project was at standstill because of the sharp increase in the cost of land for the sections in India.
    • The Railway Ministry would bear the cost of laying the 5.46-km track on the Indian side and the cost of the 10.6-km track on the Bangladesh side was being borne by the Ministry of External Affairs.

  • Sharang Artillery Gun

     

    The Ordnance Factory Board (OFB) has handed over Sharang, the first 130mm M-46 artillery gun upgraded to 155mm to the Indian Army.

    About Sharang

    • Sharang is the 130mm artillery gun ‘up-gunned’ to 155mm, 45 calibre up-gunning based on the Army’s tender.
    • The gun’s range has now gone from 27km to over 36km with the upgrade.
    • It also has more explosive capability and hence and more damage potential.
    • This step will reduce the logistic trail of the Army as it does away with the need to carry 130mm shells and support equipment as the mainstay of the Army’s long range artillery is 155mm guns.

    Other artilleries of Indian Army

    • After close to three decades, the Army inducted its first modern artillery guns system in November 2018.
    • These include M-777 Ultra Light Howitzers (ULH) from the U.S. and K9 Vajra-T self-propelled artillery guns from South Korea.
    • The Army has the older, battle-proven Bofors 155mm guns in service. The 155mm Dhanush towed gun system, developed based on the Bofors guns by OFB, is under induction.
    • In October last year, the Army procured and inducted 155mm Excalibur precision guided ammunition from the U.S. which gives its 155mm artillery guns extended range and also the ability to hit targets with very high accuracy.