Current Affair Category: Science & Technology

Why in News?  Jayant Vishnu Narlikar, a prominent Indian astrophysicist was recently died. About Him: Jayant Vishnu Narlikar, a prominent Indian astrophysicist, is known for his pioneering work in cosmology and astrophysics. He co-developed the Hoyle-Narlikar Theory of Gravity, which integrates Albert Einstein’s relativity with Mach’s principle. As the founding director of the Inter-University Centre […]

Why in News? The Axiom-4 mission, set to carry Indian astronaut Shubhanshu Shukla and three others to the International Space Station (ISS), is now scheduled to launch no earlier than June 8, 2025, according to NASA Relevance : UPSC Pre & Mains Prelims :  ISS/AXIOM Mission Mains :  GS 3 Key Points: This private mission, […]

Why in news ?  The Indian Space Research Organisation (ISRO) is set for the 101st launch with the PSLV-C61/EOS-09 mission on 18th May 2025, aiming to enhance India’s all-weather surveillance capabilities. Relevance : UPSC  Pre & Mains Prelims : About the mission/ other related satellites Mains :   GS 3- Science &  Tech. About PSLV-C61 / […]

Why in News ?   The Indian Air Force (IAF) showcased its Integrated Air Command and Control System (IACCS) during a briefing on Operation Sindoor, demonstrating its effectiveness in neutralizing aerial threats from Pakistan during a recent military conflict. This highlights India’s robust air defense infrastructure. Relevance :  UPSC Pre & Mains Prelims: IACCS/) Akashteer System […]

Why in News?. A 42-year-old woman in Malappuram, Kerala, has recently tested positive for Nipah virus. She  was diagnosed with Acute Encephalitis Syndrome (AES). Relevance : UPSC Pre & Mains Prelims : Acute Encephalitis Syndrome (AES)/ insecticide-treated nets (ITNs Mains :  GS 1/GS 2 – Social Issues/ Health) About the Acute Encephalitis Syndrome (AES): Acute […]

The S-400 Triumf (NATO: SA-21 Growler), developed by Russia’s Almaz-Antey, is one of the most advanced long-range surface-to-air missile (SAM) systems globally, designed to counter aircraft, drones, cruise missiles, and ballistic missiles. Relevance : UPSC Pre & Mains Prelims : The S-400 Triumf)/other defence systems Mains :  GS 2 –IR/ GS 3-Security /Science & Dev.) […]

Why in News?  India’s reported use of Harop drones in strikes on Pakistani targets (e.g., Lahore, Karachi, Rawalpindi) during Operation Sindoor, following a terror attack in Pahalgam. About  Harop  Drone : The Harop, developed by Israel Aerospace Industries (IAI), is a loitering munition, also known as a suicide or kamikaze drone, combining features of an […]

Why in News ?  In a pre-recorded video message delivered at the Global Space Exploration Conference 2025 held in New Delhi , the Prime Minister Narendra Modi has recently emphasized the multifaceted role of India’s space programme . He said it extends beyond scientific exploration to serve as a powerful tool for empowering citizens and […]

Why in News?  An international team of solar physicists, including researchers from the Indian Institute of Astrophysics (IIA), Bengaluru, has discovered large-scale plasma shifts in the Sun’s near-surface shear layer (NSSL). Published in the Astrophysical Journal Letters. The study reveals that these plasma shifts, driven by the Sun’s rotation and the Coriolis force, are crucial […]

Why in News ?  The Cosmologists has recently  studied how matter clumps together in the universe post-Big Bang, forming galaxies, clusters, and cosmic structures. The concept of “clumpiness” is quantified using a parameter called Sigma 8 (S8), which measures the amplitude of matter fluctuations on scales of 26 million light-years. Relevance : Prelims : Sigma […]