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

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

ISRO has successfully launched the EOS-05 satellite, India's first imaging satellite from geosynchronous orbit, using GSLV-F17. This marks a comeback after launch failures in 2025-26 and replaces the failed EOS-03 mission. The satellite will provide real-time strategic imagery for national activities.

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.

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.

Indian Railways Launches First LNG-Diesel Dual-Fuel DEMU Train; 40% Diesel Replacement, Rs 23.9 Lakh Annual Savings

Indian Railways has launched its first LNG-diesel dual-fuel DEMU train from Sabarmati, Gujarat, capable of replacing 40% diesel consumption. This follows the hydrogen train launched in July 2026, marking a strategic shift towards alternative fuels to reduce costs and emissions. For exam aspirants, this is a key case study in energy transition and infrastructure modernization.

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'.

ISRO to Launch EOS-05 (GISAT-1A) via GSLV F17 on Sept 4; Replaces Failed GISAT-1

ISRO ends a seven-month launch hiatus with the launch of EOS-05 (GISAT-1A) on September 4, 2026 via GSLV-F17. This earth observation satellite, a replacement for the failed GISAT-1 (2021), will provide critical real-time imagery for disaster monitoring, agriculture, and forestry — a key upgrade for India's space-based surveillance capabilities.