science and tech

Hyper-Spectral Imaging Satellite and its Key Features

Context: 3 hyperspectral satellites developed by Indian startup Pixxel were recently launched by SpaceX Falcon-9. With this, Pixxel has completed Phase 1 of its Firefly Constellation, placing a total of six satellites in orbit. What is Meant by Hyper-Spectral Imaging Satellite...

Radio Access Networks (RAN), Components and Types

Context: India hosts first-ever 3GPP RAN meetings on 6G standardisation in Bengaluru. About Radio Access Networks (RAN) Radio Access Networks (RAN) are part of a telecom network that connects user devices (mobiles, laptops, IoT) to the core network via radio...

INS Udaygiri, Key Features, Capabilities and Strategic Significance

Context: The Indian Navy simultaneously commissioned INS Udaygiri and INS Himgiri at Visakhapatnam. Both names revive earlier ships decommissioned in 2007 (Udaygiri) and 2005 (Himgiri). Recently, Yard 12652, named Udaygiri, constructed by Mazagon Dock Shipbuilders Limited (MDSL), was officially handed...

RAN SAMWAD-2025, Participants, Purpose and Strategic Significance

Context: India is holding its first-ever Tri-service seminar, RAN SAMWAD-2025, to launch new joint doctrines and boost military integration. RAN SAMWAD-2025 RAN SAMWAD-2025 in clear bullet points: What it is: A unique two-day Tri-service seminar on war, warfare, and warfighting...

National Space Day 2025: Date, Theme, Chandrayaan-3 Legacy, and ISRO Celebrations

India will celebrate National Space Day 2025 on August 23, 2025, marking the second anniversary of one of the greatest milestones in Indian space history – the successful soft landing of Chandrayaan-3 on the Moon’s south pole. This achievement not...

India Successfully Test-Fires Agni-5 Missiles, Type and Capabilities

India has test-fired its Agni-5 intermediate-range ballistic missile successfully from the Integrated Test Range at Chandipur, Odisha. The test on August 20, 2025, was a routine user trial under the Strategic Forces Command. The test confirmed all operational and technical...

Primary Amoebic Meningoencephalitis (PAM): Causes, Symptoms and Treatment

Context: Kerala’s health department has issued an alert in Kozhikode district following the detection of three consecutive cases of the rare infection, primary amoebic meningoencephalitis (PAM), in the region. Primary Amoebic Meningoencephalitis (PAM) Primary Amoebic Meningoencephalitis (PAM) is a rare...

What is Supernova, Types, Causes and Effects Explained

Context: Astronomers reported in The Astrophysical Journal the discovery of a new type of supernova that occurs when a black hole wins a gravitational tug-of-war against a giant star. What is Supernova? Definition: A supernova is a powerful explosion that...

Japanese Encephalitis: Transmission, Symptoms, Prevention and Control

Context: Japanese Encephalitis vaccination expanded in Tamil Nadu. Japanese Encephalitis What it is: A viral disease caused by the Japanese Encephalitis Virus (JEV), belonging to the Flavivirus genus (same family as dengue and yellow fever). It primarily affects the central...

India’s First Private Constellation of EO Satellites

Context: India is in the news for setting up its first private constellation of Earth Observation (EO) satellites under the Public-Private Partnership (PPP) model, led by the PixxelSpace India consortium. India’s First Private EO Satellite Constellation under the PPP Model...