ISRO Successfully Launches EOS-05, India's First Geo-Orbit Imaging Satellite (2367 kg) via GSLV-F17

ISRO Launches EOS-05: India's First Geosynchronous Earth-Imaging Satellite for Strategic & Disaster Monitoring

ISRO has successfully launched EOS-05, India's first earth-imaging satellite placed in geosynchronous orbit. Unlike polar-orbiting satellites, it can continuously observe the same area, making it invaluable for real-time disaster response (floods, cyclones, forest fires), agricultural monitoring, and strategic security applications. This marks a significant leap in India's space-based surveillance capabilities.

ISRO Successfully Launches India's First Geosynchronous Imaging Satellite EOS-05 via GSLV-F17

ISRO achieves a milestone by launching EOS-05, India's first dedicated imaging satellite in geosynchronous orbit, capable of continuous real-time monitoring of the country. This success is crucial for ISRO's recovery after recent failures and strengthens India's space-based surveillance and disaster management capabilities.

ISRO Launches EOS-05: India's First Geo-Imaging Satellite in Geosynchronous Orbit; SC Invokes Article 142 to Quash CJP Protest Cases

A day of high exam relevance: ISRO successfully launched EOS-05, India’s first dedicated geo-imaging satellite in geosynchronous orbit, breaking a failure streak. The Supreme Court used its extraordinary power under Article 142 to close cases linked to CJP protests, raising important constitutional questions. Other key updates include OpenAI’s new autonomous AI model, Manipur’s NRC-first demand for Census deferral, mistrust in GDP data, and Tata Chemicals’ Kenya dispute.

NavIC Constellation Drops to 3 Satellites, Fails to Provide Standalone Positioning: Govt Accepts

ISRO's NavIC system has lost its ability to provide independent navigation services because only 3 of its 7 satellites are operational, falling short of the minimum 4 required. The government has admitted this in Parliament, though timing services and emergency messaging continue. This raises concerns about India's space-based navigation self-reliance, but the armed forces mitigate risk by using NavIC as part of a multi-constellation GNSS that includes GPS, Galileo, and Glonass.

New Legal Metrology (Indian Standard Time) Rules 2026 Mandate IST Traceability for All Official Use

India has made Indian Standard Time (IST) legally enforceable under the Legal Metrology (Indian Standard Time) Rules, 2026. All official and commercial systems must synchronize to IST traceable to CSIR-NPL. This reduces reliance on foreign GPS, improves cybersecurity, and enables 'One Nation, One Time'.

18th BRICS Summit New Delhi Declaration: RSSC Expansion, Space Debris, PAROS Working Group

The 18th BRICS Summit adopted the New Delhi Declaration, underscoring progress in expanding the BRICS Remote Sensing Satellite Constellation (RSSC) to include new space agencies, strengthening space debris mitigation efforts, and advancing discussions on the Prevention of an Arms Race in Outer Space (PAROS) via an open-ended working group. This highlights deepening BRICS cooperation in space technology and security, a key area for UPSC International Relations and Science & Technology segments.

Subsea Cables Carry 99% Internet Traffic: Vulnerabilities, Ownership Concentration & India's Resilience Plan

Subsea cables carry over 99% of global internet traffic, yet their supply chain is concentrated among a few private players and hyperscalers, making them vulnerable to sabotage, cyberattacks, and economic disruption. Recent NATO, Finland, and China incidents highlight intensifying threats, while India is building repair capacity via a DoT single-window clearance portal. This is a high-yield topic for GS3 infrastructure, science-tech, and security questions.

KAVACH Version 4.0 Commissioned on SCR: India’s Indigenous Automatic Train Protection System Explained

KAVACH, India's indigenous Automatic Train Protection (ATP) system, has been upgraded to Version 4.0 and commissioned on the South Central Railway's Malkajgiri–Kamareddi section over 108 route km. This is crucial for UPSC as it touches infrastructure, safety technology, and comparisons with global systems like ETCS, ATC, and PTC. The article also links to Sam Pitroda committee recommendations on railway modernisation.