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Subject: Science and Technology

  • A place for disruptive technology in India’s health sector

    The adoption of technologies such as AI and blockchain has the potential to transform the medical sector. 

    How new technologies can play important role in medical sector

    1) Blockchain technology

    • Blockchain technology can help in addressing the interoperability challenges that health information and technology systems face.
    • The health blockchain would contain a complete indexed history of all medical data, including formal medical records and health data from mobile applications and wearable sensors.
    • This can also be stored in a secure network and authenticated, besides helping in seamless medical attention.

    2) Big data analytics

    • Big data analytics can help improve patient-based services tremendously such as early disease detection.
    • AI and the Internet of Medical Things, or IoMT are shaping healthcare applications.
    • IoMT is defined as a connected infrastructure of medical devices, software applications, and health systems and services.

    3) Medical autonomous system

    • Medical autonomous systems can also improve health delivery to a great extent and their applications are focused on supporting medical care delivery in dispersed and complex environments with the help of futuristic technologies.
    • This system may also include autonomous critical care system, autonomous intubation, autonomous cricothyrotomy and other autonomous interventional procedures.

    4) Cloud computing

    • Cloud computing is another application facilitating collaboration and data exchanges between doctors, departments, and even institutions and medical providers to enable best treatment.

    Challenges

    • The possible constraints in this effort are standardisation of health data, organisational silos, data security and data privacy, and also high investments.

    Using technology for Universal Health Coverage

    • According to the World Health Organization, Universal health coverage (UHC) is a powerful social equalizer and the ultimate expression of fairness.
    • Studies by WHO show that weakly coordinated steps may lead to stand-alone information and communication technology solutions.
    • India needs to own its digital health strategy that works and leads towards universal health coverage and person-centred care.
    • Such a strategy should emphasise the ethical appropriateness of digital technologies, cross the digital divide, and ensure inclusion across the economy.
    • ‘Ayushman Bharat’ and tools such as Information and Communication Technology could be be fine-tuned with this strategy to promote ways to protect populations.
    • Online consultation should be a key part of such a strategy.

    Using local knowledge

    • In addition to effective national policies and robust health systems, an effective national response must also draw upon local knowledge.
    • Primary health centres in India could examine local/traditional knowledge and experience and then use it along with modern technology.

    Way forward

    • Initial efforts in this direction should involve synchronisation and integration, developing a template for sharing data, and reengineering many of the institutional and structural arrangements in the medical sector.
    • Big data applications in the health sector should help hospitals provide the best facilities and at less cost, provide a level playing field for all sectors, and foster competition.

    Consider the question “Examine the role technologies such as AI and data analytics could play in the medical sector. What are the challenges in the adoption of such technologies?”

    Conclusion

    The above-discussed aspects highlight the potential benefits of the adoption of disruptive technologies in the healthcare system. India should embrace it while addressing the concerns with such technologies.

  • [pib] Space-time induces Neutrino Oscillations

    Indian scientists have shown that the geometry of space-time can cause neutrinos to oscillate.

    What are Neutrinos?

    • A neutrino is a subatomic particle that is very similar to an electron but has no electrical charge and a very small mass, which might even be zero.
    • Since neutrinos are electrically neutral, they are not affected by the electromagnetic forces which act on electrons. Hence, they are also called Ghost Particles.
    • Neutrinos are affected only by a “weak” sub-atomic force of a much shorter range than electromagnetism and are therefore able to pass through great distances in matter without being affected by it.
    • They are also one of the most abundant particles in the universe. As they have very little interaction with matter, however, they are incredibly difficult to detect.

    Answer this PYQ in the comment box:

    Q.The known forces of nature can be divided into four classes, viz, gravity, electromagnetism, weak nuclear force and strong nuclear force. With reference to them, which one of the following statements is not correct?

    (a) Gravity is the strongest of the four

    (b) Electromagnetism act only on particles with an electric charge

    (c) Weak nuclear force causes radioactivity

    (d) Strong nuclear force holds protons and neutrons inside the nuclear of an atom

    Finding of the new research

    • Neutrinos are mysterious particles, produced copiously in nuclear reactions in the Sun, stars, and elsewhere.
    • They “oscillate”- meaning that different types of neutrinos change into one another – as has been found in many experiments.
    • Probing of oscillations of neutrinos and their relations with mass are crucial in studying the origin of the universe.
    • Neutrinos interact very weakly with everything else – trillions of them pass through every human being every second without anyone noticing.
    • A neutrino’s spin always points in the opposite direction of its motion, and until a few years ago, neutrinos were believed to be massless.

    What makes this possible?

    • The geometry of space-time can cause neutrino oscillations through quantum effects even if neutrinos are massless.
    • Einstein’s theory of general relativity says that gravitation is the manifestation of space-time curvature.
    • Neutrinos, electrons, protons and other particles which are in the category of fermions show a certain peculiarity when they move in presence of gravity.
    • Space-time induces a quantum force in addition to gravity between every two fermions.
    • This force can depend on the spin of the particles and causes massless neutrinos to appear massive when they pass through matter, like the Sun’s corona or the Earth’s atmosphere.
    • Something similar happens for electroweak interactions, and together with the geometrically induced mass, it is enough to cause oscillation of neutrinos.

  • India to launch Deep Ocean Mission

    The Union Cabinet has approved the long-pending Deep Ocean Mission since 2018.

    Deep Ocean Mission (DOM)

    • Nodal Agency: Ministry of Earth Sciences (MoES)
    • The mission proposes to explore the deep ocean similar to the space exploration started by ISRO.
    • Underwater robotics and ‘manned’ submersibles are key components of the Mission which will help India harness various living and non-living (water, mineral and energy) resources from the seabed and deep water.
    • The tasks that will be undertaken over this period include deep-sea mining, survey, energy exploration and offshore-based desalination.
    • These technological developments are funded under an umbrella scheme of the government – called Ocean Services, Technology, Observations, Resources Modelling and Science (O-SMART).

    Six major components

    (1) Development of Technologies for Deep Sea Mining, and Manned Submersible:

    • A manned submersible will be developed to carry three people to a depth of 6000 metres in the ocean with suite of scientific sensors and tools.
    • Only a very few countries have acquired this capability.
    • An Integrated Mining System will be also developed for mining Polymetallic Nodules from 6000 m depth in the central Indian Ocean.

    (2) Development of Ocean Climate Change Advisory Services:

    • A suite of observations and models will be developed to understand and provide future projections of important climate variables on seasonal to decadal time scales under this proof of concept component.
    • This component will support the Blue Economy priority area of coastal tourism.

    (3) Technological innovations for exploration and conservation of deep-sea biodiversity:

    • Bio-prospecting of deep-sea flora and fauna including microbes and studies on sustainable utilization of deep-sea bio-resources will be the main focus.
    • This component will support the Blue Economy priority area of Marine Fisheries and allied services.

    (4) Deep Ocean Survey and Exploration:

    • The primary objective of this component is to explore and identify potential sites of multi-metal Hydrothermal Sulphides mineralization along the Indian Ocean mid-oceanic ridges.
    • This component will additionally support the Blue Economy priority area of deep-sea exploration of ocean resources.

    (5) Energy and freshwater from the Ocean:

    • Studies and detailed engineering design for offshore Ocean Thermal Energy Conversion (OTEC) powered desalination plant are envisaged in this proof of concept proposal.
    • This component will support the Blue Economy priority area of offshore energy development.

    (6) Advanced Marine Station for Ocean Biology:

    • This component is aimed at the development of human capacity and enterprise in ocean biology and engineering.
    • This component will translate research into the industrial application and product development through on-site business incubator facilities.
    • This component will support the Blue Economy priority area of Marine Biology, Blue trade and Blue manufacturing.

    Why need such a mission?

    • Oceans, which cover 70 per cent of the globe, remain a key part of our life. About 95 percent of the Deep Ocean remains unexplored.
    • For India, with its three sides surrounded by the oceans and around 30 per cent of the country’s population living in coastal areas.
    • The ocean is a major economic factor supporting fisheries and aquaculture, tourism, livelihoods and blue trade.
    • Oceans are also a storehouse of food, energy, minerals, medicines, modulator of weather and climate and underpin life on Earth.

    Pre-requisites to this mission

    • India has been allotted a site of 75,000 square kilometres in the Central Indian Ocean Basin (CIOB) by the UN International Sea Bed Authority for the exploitation of polymetallic nodules (PMN).

    Hunt for PMNs

    • These are rocks scattered on the seabed containing iron, manganese, nickel and cobalt.
    • Being able to lay hands on a fraction of that reserve can meet the energy requirement of India for the next 100 years.
    • It has been estimated that 380 million metric tonnes of polymetallic nodules are available at the bottom of the seas in the Central Indian Ocean.
    • India’s Exclusive Economic Zone spreads over 2.2 million square kilometers.

  • [pib] NAFED launches Fortified Rice Bran Oil

    The Department of Food and Public Distribution today E-launched “NAFED Fortified Rice Bran Oil”.

    Rice Bran Oil

    • Rice bran oil is the oil extracted from the hard outer brown layer of rice called chaff (rice husk).
    • It is known for its high smoke point of 232 °C (450 °F) and mild flavor, making it suitable for high-temperature cooking methods such as stir-frying and deep-frying.
    • It is popular as a cooking oil in the Indian subcontinent.
    • It has a composition similar to that of peanut oil, with 38% monounsaturated, 37% polyunsaturated, and 25% saturated fatty acids.
    • It is generally safe for consumption for most people when used in moderate amounts. However excessive usage of rice bran oil can lead to stomach discomfort.

    What is NAFED oil?

    • Rice Bran oil from NAFED will be fortified and it will be ensured that it will contain additional nutrients and vitamins.
    • This Rice bran oil will be marketed by NAFED (National Agricultural Cooperative Marketing Federation of India Ltd).
    • According to the FSSAI, fortified oil can help a person fulfill 25-30% of the recommended dietary intake for vitamins A and D.
    • NAFED Fortified Rice Bran Oil will be available at all NAFED Stores and also on various online platforms.

    Benefits of the NAFED oil

    • This initiative will significantly reduce the country’s consumption dependence on imported edible oil in the future.
    • This will provide opportunities for Indian edible oil manufacturers further, and also will give an impetus to the Aatmnirbhar Bharat initiative.
    • It will provide easy access to NAFED branded high-quality rice bran oil, which will also give a boost to the indigenous oil manufacturing industry.

    Health benefits of rice bran oil

    • Rice Bran oil has multiple health benefits, including lowering cholesterol levels due to its low trans-fat content and high monounsaturated and polyunsaturated fat contents.
    • It also acts as a booster and reduces the risk of cancer due to the high amount of Vitamin E it contains.
    • This oil is recommended by The American Heart Association and the World Health Organization (WHO) as one of the best substitutes for other edible oils.

    About NAFED

    • NAFED is an apex organization under the Ministry of Agriculture that deals with marketing cooperatives for agricultural produce in India.
    • It is registered under the Multi-State Co-operative Societies Act.
    • It was set up with the object to promote Cooperative marketing of agricultural produce to benefit the farmers.
    • Agricultural farmers are the main members of NAFED, who have the authority to say in the form of members of the General Body in the working of NAFED.

  • New Shephard rocket system for cost-effective access to space

    Last week, Amazon founder and billionaire Jeff Bezos’s space company called Blue Origin concluded the online auction for the first seat on New Shephard, a rocket system meant to take tourists to space.

    What is New Shephard?

    • New Shephard has been named after astronaut Alan Shephard – the first American to go to space – and offers flights to space over 100 km above the Earth and accommodation for payloads.
    • Essentially, it is a rocket system that has been designed to take astronauts and research payloads past the Karman line – the internationally recognized boundary of space.
    • The idea is to provide easier and more cost-effective access to space meant for purposes such as academic research, corporate technology development, and entrepreneurial ventures among others.
    • Apart from its academic and research-oriented goal, New Shephard will also allow space tourists to experience microgravity by taking them 100 km above the Earth.

    Its components

    • The rocket system consists of two parts, the cabin or capsule, and the rocket or the booster.
    • The cabin can accommodate experiments from small Mini Payloads up to 100 kg.
    • As per Blue Origin, the Mini Payloads provide easier space access to students, who are part of educational institutions that are developing their own space programs.
    • Further, the cabin is designed for six people and sits atop a 60 feet tall rocket and separates from it before crossing the Karman line, after which both vehicles fall back to the Earth.
    • All the six seats in the capsule are meant for passengers, each of whom gets their own window seat. The capsule is fully autonomous and does not require a pilot.

    How does it work?

    • The system is a fully reusable, vertical takeoff and vertical landing space vehicle that accelerates for about 2.5 minutes before the engine cuts off.
    • After separating from the booster, the capsule free falls in space, while the booster performs an autonomously controlled vertical landing back to Earth.
    • The capsule, on the other hand, lands back with the help of parachutes.

    A boost for space tourism

    • Space tourism seeks to give laypeople the ability to go to space for recreational, leisure, or business purposes.
    • The idea is to make space more accessible to those individuals who are not astronauts and want to go to space for non-scientific purposes.

  • Cyberattacks reveal vulnerabilities in critical infrastructures

    The article highlights the threat posed by cyberattacks to our critical infrastructure and suggest the ways to deal with the the ever evolving threat.

    Civilian targets of cyberattacks

    • Several high-profile cyberattacks were reported from the United States during the past several months.
    • These attacks were all primarily on civilian targets, though each one was of critical importance.
    • Obviously cyber, which is often referred to as the fifth domain/dimension of warfare, is now largely being employed against civilian targets.
    • Most nations have been concentrating till date mainly on erecting cyber defences to protect military and strategic targets, but this will now need to change.

    Challenges

    • Defending civilian targets, and more so critical infrastructure, against cyberattacks such as ransomware and phishing is almost certain to stretch the capability and resources of governments across the globe.
    • The distinction between military and civilian targets is increasingly getting erased and the consequences of this could be indeterminate.
    •  In the civilian domain, two key manifestations of the ‘cat and mouse game’ of cyber warfare today, are ransomware and phishing, including spear phishing.
    • Banking and financial services were most prone to ransomware attacks till date, but oil, electricity grids, and lately, health care, have begun to figure prominently.
    • Ransomware attacks have skyrocketed, with demands and payments going into multi-millions of dollars.
    • India figures prominently in this list, being one of the most affected.
    • Compromised ‘health information’ is proving to be a vital commodity for use by cybercriminals.
    • All indications are that cybercriminals are increasingly targeting a nation’s health-care system and trying to gain access to patients’ data.
    • The available data aggravates the risk not only to the individual but also to entire communities.
    • Cybercriminals are becoming more sophisticated, and are now engaged in stealing sensitive data in targeted computers before launching a ransomware attack.
    • Also, today’s cybercriminals, specially those specialising in ransomware and similar attacks, are different from the ordinary  criminals.
    • Many are known to practise ‘reverse engineering’ and employ ‘penetration testers’ to probe high secure networks.

    Way forward

    • The need to be aware of the nature of the cyber threat to their businesses and take adequate precautionary measures, has become extremely vital.
    • Cybersecurity essentially hinges on data protection. 
    • As data becomes the world’s most precious commodity, attacks on data and data systems are bound to intensify.
    • With mobile and cloud computing expanding rapidly cybersecurity professionals are now engaged in building a ‘Zero Trust Based Environment’, viz., zero trust on end point devices, zero trust on identity, and zero trust on the network to protect all sensitive data. 
    • Building deep technology in cyber is essential.
    • New technologies such as artificial intelligence, Machine learning and quantum computing, also present new opportunities.
    • Pressure also needs to be put on officials in the public domain, as also company boards, to carry out regular vulnerability assessments and create necessary awareness of the growing cyber threat.

    Consider the question “Several high-profile cyberattacks across the world have exposed vulnerabilities in the critical infrastructure of even advanced nations. In light of this, examine the challenges posed by cyberattacks and suggest measures to deal with these challenges.” 

    Conclusion

    The threat posed by the cyberattacks highlights the need for improved defences against actual, and potential, cyberattacks by all countries across continents.

  • India’s investment in research unsatisfactory: UNESCO report

    While India has made ‘solid progress’ towards the Sustainable Development Goal (SDG) targets concerning the industry, infrastructure, and innovation, the country’s investment in research remains unsatisfactory, the UNESCO Science Report has observed. UNESCO Science Report.

    This newscard provides useful data about India’s expenditure on R&D and its adequacy.

    UNESCO Science Report

    • The UNESCO Science Report is a global monitoring report published regularly by the United Nations Educational, Scientific and Cultural Organization.
    • Every five years, this report maps the latest trends and developments in national and regional policy landscapes, against the backdrop of shifting socio-economic, geopolitical and environmental realities.

    Data on research funding in India

    • India has one of the lowest GERD/GDP ratios among the BRICS nations, according to the report.
    • The gross domestic expenditure on research (GERD) has been stagnant at 0.7% of the GDP for years, although, in absolute terms, research expenditure has increased.

    Why flag such slowdown?

    • India’s research intensity has been declining since 2014.
    • The Science and Technology Policy of 2003 fixed the threshold of devoting 2% of GDP to research and development (R&D) by 2007.
    • This target date was set back to 2018 in the new Science, Technology and Innovation Policy (2013) then again to 2022 by the Economic Advisory Council of the Prime Minister.
    • In 2020, the task force drafting the country’s new Science and Technology Policy recommended pushing back the target date to a more realistic 2030.

    Rise of private enterprises

    • R&D in the government sector has been in steady decline since 2015, whereas the share of private business enterprises in it has shot up to 42%.
    • While in theory this is a positive trend, the R&D is focused primarily on sectors such as pharmaceuticals, automotive, and information technology.
    • Even in these industries, it is concentrated in a small number of firms, the report said.
    • It further noted that investment in R&D by foreign multinationals is on the rise, accounting for as much as 16% of private-sector investment in R&D in 2019.
    • The report noted that the majority of the software-related patents were being bagged by MNCs operating from Indian soil, while pharma patents were obtained mostly by domestic firms.

    Few successes to count

    • On the bright side is the encouraging increase in scientific publications by Indian researchers on cutting-edge technologies.
    • Total publications have risen from 80,458 in 2011 to 1.61 lakh in 2019.
    • Indian researchers are publishing between 1.5 and 1.8 times the global average on green technologies, complementing the government’s push to expand green energy sources.
    • But then again, patenting by domestic corporations, research institutes, universities, and individuals remain low in India.

    Key suggestions

    • The UNESCO Science Report underscores the need for ‘policy bridges’ for fostering a more effective interaction between foreign and local research firms.
    • Given the large number of multinational corporations now engaged in R&D, it is imperative that the host economy benefits from this activity the report said.
    • It also called for improved linkages between the start-up ecosystem and manufacturers to push technological development in sectors where India enjoys a global presence.

  • Polar-Areas Stellar-Imaging in Polarisation High-Accuracy Experiment (PASIPHAE)

    The development of a vital instrument PASIPHAE, which will be used in upcoming sky surveys to study stars, is being led by an Indian astronomer.

    What is PASIPHAE?

    • PASIPHAE stands for Polar-Areas Stellar-Imaging in Polarisation High-Accuracy Experiment.
    • It is an international collaborative sky surveying project. Scientists aim to study the polarisation in the light coming from millions of stars.
    • The name is inspired by Pasiphae, the daughter of Greek Sun God Helios.
    • The survey will use two high-tech optical polarimeters to observe the northern and southern skies, simultaneously.
    • It will focus on capturing starlight polarisation of very faint stars that are so far away that polarisation signals from there have not been systematically studied.
    • By combining the data, astronomers will perform a maiden magnetic field tomography mapping of the interstellar medium of very large areas of the sky using a novel polarimeter instrument known as WALOP.

    Why is PASIPHAE important?

    • Since its birth about 14 billion years ago, the universe has been constantly expanding, as evidenced by the presence of Cosmic Microwave Background (CMB) radiation which fills the universe.
    • Immediately after its birth, the universe went through a short inflationary phase during which it expanded at a very high rate before it slowed down and reached the current rate.
    • However, so far, there have only been theories and indirect evidence of expansion associated with the early universe.
    • A definitive consequence of the inflationary phase is that a tiny fraction of the CMB radiation should have its imprints in the form of a specific kind of polarisation (known scientifically as a B-mode signal).
    • All previous attempts to detect this signal met with failure mainly due to the difficulty posed by our galaxy, the Milky Way, which emits copious amounts of polarized radiation.
    • Besides, it contains a lot of dust clouds that are present in the form of clusters. When starlight passes through these dust clouds, they get scattered and polarized.

    What will PASIPHAE do?

    • The PASIPHAE survey will measure starlight polarisation over large areas of the sky.
    • This data along with distances to the stars will help create a 3-Dimensional model of the distribution of the dust and magnetic field structure of the galaxy.
    • Such data can help remove the galactic polarized foreground light and enable astronomers to look for the elusive B-mode signal.

    What is WALOP?

    • Wide Area Linear Optical Polarimeter (WALOP) is an instrument when mounted on two small optical telescopes, that will be used to detect polarized light signals emerging from the stars along high galactic latitudes.
    • The images will simultaneously have the finest of details of a star along with its panoramic background.
    • WALOP will operate on the principle that at any given time, the data from a portion of the sky under observation will be split into four different channels.
    • Depending on the manner in which light passes through the four channels, the polarisation value from the star is obtained.
    • That is, each star will have four corresponding images which when stitched together will help calculate the desired polarisation value of a star.

  • EnVision Mission to Venus

    Following NASA’s footsteps, the European Space Agency (ESA) announced that it has selected EnVision as its next orbiter that will visit Venus sometime in the 2030s.

    Last week, NASA selected two missions to the planet Venus, Earth’s nearest neighbour. The missions called DAVINCI+ and VERITAS have been selected based on their potential for scientific value and the feasibility of their development plans.

    What is EnVision?

    • EnVision is an ESA-led mission with contributions from NASA. It is likely to be launched sometime in the 2030s.
    • The earliest launch opportunity for EnVision is 2031, followed by 2032 and 2033.
    • Once launched on an Ariane 6 rocket, the spacecraft will take about 15 months to reach Venus and will take 16 more months to achieve orbit circularization.
    • The spacecraft will carry a range of instruments to study the planet’s atmosphere and surface, monitor trace gases in the atmosphere and analyses its surface composition.

    What are other such missions?

    • EnVision will follow another ESA-led mission to Venus called ‘Venus Express’ (2005-2014) that focused on atmospheric research and pointed to volcanic hotspots on the planet’s surface.
    • Other than this, Japan’s Akatsuki spacecraft has also been studying the planet’s atmosphere since 2015.

    Why are scientists interested in studying Venus?

    • At the core of the ESA’s mission is the question of how Earth and Venus evolved so differently from each other considering that they are roughly of the same size and composition.
    • Venus is the hottest planet in the solar system because of the heat that is trapped by its thick cloud cover.
    • Last year, a team of scientists reported that they had found phosphine gas (a chemical produced only through biological processes) in the atmosphere of Venus.
    • This triggered excitement in the scientific community that some life forms might be supported by the planet.
    • But the existence of life on the planet is nearly impossible given the high temperatures of Venus and its acidic atmosphere.

    Back2Basics: Venus Planet

    • For those on Earth, Venus is the second-brightest object in the sky after the moon.
    • It appears bright because of its thick cloud cover that reflects and scatters light.
    • But while Venus, which is the second closest planet to the Sun, is called the Earth’s twin because of their similar sizes, the two planets have significant differences between them.
    • For one, the planet’s thick atmosphere traps heat and is the reason that it is the hottest planet in the solar system, despite coming after Mercury, the closest planet to the Sun.
    • Surface temperatures on Venus can go up to 471 degrees Celsius, which is hot enough to melt lead.
    • Further, Venus moves forward on its orbit around the Sun but spins backwards around its axis slowly.
    • This means on Venus the Sun rises in the west and sets in the East.
    • One day on Venus is equivalent to 243 Earth days because of its backward spinning, opposite to that of the Earth’s and most other planets.
    • Venus also does not have a moon and no rings.

  • CHIME Telescope

    Scientists with the Canadian Hydrogen Intensity Mapping Experiment (CHIME) Collaboration have assembled the largest collection of fast radio bursts (FRBs) in the telescope’s first FRB catalog.

    CHIME Telescope

    • CHIME is an interferometric radio telescope at the Dominion Radio Astrophysical Observatory in British Columbia, Canada.
    • It consists of four antennas consisting of 100 x 20-meter cylindrical parabolic reflectors with 1024 dual-polarization radio receivers suspended on support above them.
    • The telescope receives radio signals each day from half of the sky as the Earth rotates.
    • While most radio astronomy is done by swiveling a large dish to focus light from different parts of the sky, CHIME stares, motionless, at the sky, and focuses incoming signals using a correlator.
    • This is a powerful digital signal processor that can work through huge amounts of data, at a rate of about seven terrabytes per second, equivalent to a few percent of the world’s Internet traffic.

    What are FRBs?

    • FRBs are oddly bright flashes of light, registering in the radio band of the electromagnetic spectrum, which blaze for a few milliseconds before vanishing without a trace.
    • These brief and mysterious beacons have been spotted in various and distant parts of the universe, as well as in our own galaxy.
    • Their origins are unknown and their appearance is highly unpredictable.
    • But the advent of the CHIME project has nearly quadrupled the number of fast radio bursts discovered to date.
    • With more observations, astronomers hope soon to pin down the extreme origins of these curiously bright signals.