Science & Technology

Supernova

How does a Supernova become a Neutron Star?

Context: In 2011, the Nobel Prize was awarded to three scientists for discovering that the Universe is expanding at an ever-accelerating rate through observations of distant supernovae.Now a team of Indian astronomers observing such distant supernovae have narrowed down the possible mechanisms of explosion of such supernovae which provide key measures of cosmological distances. The explosive death …

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Narrow-Line Seyfert 1 (NLS1) & The Concept of ‘Red Shift’

Narrow-Line Seyfert 1: Astronomers have discovered a new active galaxy – the Narrow-Line Seyfert 1 (NLS1) galaxy- identified as the farthest gamma-ray emitting galaxy that has so far been stumbled upon. Analysis Ever since 1929, when Edwin Hubble discovered that the Universe is expanding, it has been known that most other galaxies are moving away …

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Oxygen Concentrators Vs Oxygen Cylinders 

Oxygen Concentrators Vs Oxygen Cylinders-Important Points

Oxygen Concentrators Vs Oxygen Cylinders: As cases surge and with oxygen cylinders in short supply across several states, the oxygen concentrator is among the most sought-after devices for oxygen therapy, especially among patients in home isolation and for hospitals running out of oxygen. Analysis How does it work? An oxygen concentrator is a medical device …

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International Space Station

International Space Station (ISS) Live updating News

Context: Russia recently announced that it would be withdrawing from the International Space Station in 2025, and build and manage its own floating laboratory/ Space Station that will be launched into orbit by 2030. Analysis The station will reportedly orbit the Earth at a higher latitude, enabling it to better observe the polar regions, especially …

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Earth Overshoot Day

What is Earth Overshoot Day 2021 in UPSC IAS?

Earth Overshoot Day marks the date when humanity’s demand for ecological resources and services in a given year exceeds what Earth can regenerate in that year. Earth Overshoot Day is hosted and calculated by Global Footprint Network (GFN), an international research organization that provides decision-makers with a menu of tools to help the human economy operate …

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IPv6

What is IPv6 and Why is it important? 

Context: IPv6 is the latest version of the Internet Protocol, which identifies devices across the internet so they can be located. Analysis Every device that uses the internet is identified through its own IP address in order for internet communication to work. The previous version, IPv4, uses a 32-bit addressing scheme to support 4.3 billion …

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National Knowledge Network

National Knowledge Network

India is fast expanding its supercomputer facilities and developing the capacity to manufacture its own supercomputers in the country. The National Supercomputing Mission (NSM) envisages empowering our national academic and R&D institutions spread over the country by installing a vast supercomputing grid comprising of more than 70 high-performance computing facilities.Part of this is being imported …

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What is Mars 2020 Perseverance Rover Mission by NASA?

Context: NASA’s Ingenuity mini-helicopter has been dropped on the surface of Mars in preparation for its first flight, the U.S. space agency said. The ultra-light aircraft had been fixed to the belly of the Nasa Perseverance rover, which touched down on the Red Planet on February 18, 2021.  Analysis Mars 2020 mission by NASA to explore …

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