US AI Czar: President Donald Trump appointed Jay Clayton, Director of National Intelligence, as head of the White House AI task force (“Super Intelligence Force”), succeeding David Sacks.

#CA2026
#APPOINTMENT

Archer Kumkum Mohod and wrestler Sujeet Kalkal won the inaugural Jaspal Rana Award and Raja Randhir Singh Award, respectively, instituted by the Indian Olympic Association (IOA) to honour the best female and male sportspersons of the Asian Games.

Interlink:- https://t.me/bpscweb/46369

#CA2026
#SPORTS

Patna–Muzaffarpur RRTS: Proposed Patna–Hajipur–Muzaffarpur corridor; NCRTC study underway. It may cut travel time to about 1 hour and improve regional mobility, jobs, industry and multimodal connectivity.

#BIHARspecial

5 Centres of Excellence for Classical Languages approved by the Department of Higher Education, Ministry of Education.

1. Classical Assamese - Tezpur University, Assam.
2. Classical Bengali - Visva-Bharati University, West Bengal.
3. Classical Marathi - Deccan College Post Graduate & Research Institute, Pune, Maharashtra.
4. Classical Pali - Central University of Odisha.
5. Classical Prakrit - Central University of Gujarat.

#CA2026
#PLACE

India–MERCOSUR Trade Deal

1. MERCOSUR is a South American trade bloc comprising Argentina, Brazil, Paraguay, Uruguay and Bolivia.
2. India–MERCOSUR Preferential Trade Agreement (PTA) was signed on 25 January 2004 and became operational on 1 June 2009.
3. India and MERCOSUR are negotiating to expand the existing PTA, with plans to include services.
4. The proposed expansion may also include a special cooperation framework for critical minerals.
5. India is aiming for a broader PTA rather than a full Free Trade Agreement (FTA).
6. Uruguay currently holds the Pro Tempore Presidency of MERCOSUR.

#CA2026

Great Indian Bustard (GIB) - Critically Endangered; Rajasthan’s State Bird; Desert National Park, Jaisalmer is its key habitat and site of India’s captive-breeding/rewilding programme.

For the first time, captive-bred Great Indian Bustard (GIB) chicks are set to be released into the wild at Desert National Park, Jaisalmer

#CA2026
#FIRST

SCO & India–Pakistan
• SCO National Coordinators’ Meeting 2026: Held in Islamabad, Pakistan; India was represented by Alok Dimri, Additional Secretary, Ministry of External Affairs.
• It was the first official Indian delegation visit to Pakistan since Operation Sindoor.
• SCO presidency/chair rotates annually among member states; Pakistan assumed the presidency after the Bishkek Summit (31 Aug–1 Sep).
• India is a full member of the Shanghai Cooperation Organisation (SCO).

#CA2026
#SUMMIT

The Royal Swedish Academy of Sciences has decided to award the 2026 Nobel Prize in Physics to Francis Halzen “for decisive contributions to the IceCube Neutrino Observatory and the discovery of high-energy neutrinos of astrophysical origin.”

Halzen realised that ice at the South Pole could be used to track particles known as neutrinos, according to the Nobel Prize website, which added that his vision and scientific leadership have been fundamental for the IceCube Neutrino Observatory – a cubic kilometre of ice that is equipped with light sensors.

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#AWARD
#NOBEL

India has proposed a three-part Russia-Ukraine truce that would halt attacks on energy facilities and other infrastructure, keep grain and energy flowing through Black Sea ports, and end strikes on commercial shipping in the strategic waterway, people familiar with the proposal said.

#GS1mains

Nobel Prize in Physics 2026
1. Francis Halzen (Belgium-born physicist but U.S. citizen) won the 2026 Nobel Prize in Physics for pioneering work using South Pole ice to detect high-energy cosmic neutrinos.
2. He made decisive contributions to the IceCube Neutrino Observatory, located at the South Pole, Antarctica.
3. IceCube is a roughly cubic-kilometre neutrino detector embedded deep in Antarctic ice and equipped with light sensors.
4. It detects high-energy neutrinos of astrophysical origin coming from distant cosmic sources.
5. Neutrinos are electrically neutral, extremely weakly interacting subatomic particles, often called “ghost particles.”
6. Unlike light and many charged particles, neutrinos can travel vast cosmic distances with little deflection or absorption, making them valuable cosmic messengers.
7. Their detection has opened the field of neutrino astronomy / multi-messenger astronomy, helping study extreme astrophysical environments.

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#AWARD
#NOBEL
👇👇

UPSC had already asked about the IceCube Neutrino Observatory in 2015; it becomes even more important for Prelims after its link with the 2026 Nobel Prize in Physics.

#PYQ

Bihar government has targeted 2030 to ensure that no poor person has to migrate outside Bihar for work.

Vidyarthi Saathi App —> Bihar government’s 24×7 digital learning platform providing live teacher support for students, including JEE–NEET preparation; students can log in via OTP and connect with a teacher within about one minute.

#BIHARspecial

Bihar Primary Education: Classes I–V will learn one regional dialect as an additional language; Maithili, Bhojpuri, Bajjika, Magahi and Angika are to be integrated into the foundational curriculum in line with NEP 2020.

Interlink: https://t.me/bpscweb/45852

#BIHARspecial

OPTogenetics - Nobel Prize 2026

1. What is Optogenetics?
Optogenetics = using LIGHT to switch specific genetically modified cells, especially neurons, ON or OFF.

Simple formula:
Gene + Light —> Control of nerve cell activity

2. Nobel Prize 2026
Nobel Prize in Physiology or Medicine 2026:
Karl Deisseroth + Peter Hegemann + Georg Nagel
—> for discoveries that established the science of Optogenetics.

3. Origin of the Discovery
• Key light-sensitive protein discovered from Chlamydomonas, a unicellular green alga.
• Important proteins: Channelrhodopsin-1 (ChR1) and Channelrhodopsin-2 (ChR2).
• Hegemann & Nagel identified/studied these light-sensitive ion channels.
• Deisseroth used them to control neurons in mammals, establishing modern optogenetics.

4. How does it work?
Light falls on Channelrhodopsin —> ion channel opens —> ions enter/leave cell —> electrical signal generated —> neuron becomes active.

In brain experiments, light is commonly delivered through an optical fibre.

5. Channelrhodopsin:- Must Remember
• Found in: Chlamydomonas
• Type: Light-gated ion channel
• Location: Cell membrane
• Function: converts light stimulus into electrical activity
• ChR2 is mainly activated by blue light.

6. Why is Optogenetics Special?
It can control only selected cells, unlike ordinary electrical stimulation which may affect many nearby cells.

Hence it provides:
High spatial precision + High temporal precision.

7. Medical/Research Applications
Being studied for:
Blindness/Retinitis pigmentosa, Parkinson’s disease, epilepsy, depression, anxiety, pain and brain-circuit mapping.

A major human application has been experimental restoration of vision in patients with retinitis pigmentosa.

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#AWARD
#NOBEL

Varanasi–Ranchi–Kolkata Expressway (NH-319E): ~800 km, 6-lane corridor from Varanasi to Kolkata via Bihar & Jharkhand; Bihar’s 33.5-km Gaya stretch (Dumaria–Imamganj) is targeted to open by June 2027.

#BIHARspecial

Nobel Prize in Chemistry 2026: Awarded to Henri B. Kagan and Kenso Soai for discovering non-linear effects and autocatalysis in asymmetric organic synthesis, helping explain molecular homochirality.

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#AWARD
#NOBEL