Science & Technology Current Affairs - 2026-04-17

Background: The NASA-ISRO Synthetic Aperture Radar (NISAR) mission is a joint Earth-observing satellite mission between NASA and ISRO. It aims to observe Earth's land and ice regions at unprecedented resolution and will help scientists understand changes in Earth's climate. Current Context: As of mid-April 2026, the NISAR satellite is undergoing final checks and calibration at the U.S. facility before its planned launch. The mission will utilize dual-frequency radar imaging to provide detailed insights into Earth's surface. Impact: NISAR will provide crucial data for disaster management, climate change studies, and understanding geological processes, enhancing India's capabilities in Earth science and remote sensing.

Background: India has been actively promoting the adoption of Artificial Intelligence (AI) across various sectors to drive innovation and economic growth. The National AI Strategy aims to leverage AI for societal benefit. Current Context: In April 2026, the government announced enhanced funding and strategic initiatives for AI applications in healthcare and agriculture. This includes developing AI-powered diagnostic tools for rural areas and precision farming solutions to boost crop yields. Impact: These AI-driven initiatives are expected to significantly improve healthcare accessibility and affordability in remote regions and enhance agricultural productivity, contributing to food security and rural development.

Background: With the increasing use of drones for surveillance and potential malicious activities, developing effective counter-drone systems has become a priority for national security. Current Context: By mid-April 2026, the Defence Research and Development Organisation (DRDO) has successfully tested a new generation of integrated counter-drone technology. This system combines advanced radar, electronic warfare capabilities, and directed energy weapons to detect, track, and neutralize hostile drones. Impact: This indigenous technology will significantly bolster India's aerial defense capabilities, providing a robust solution against emerging aerial threats and reducing reliance on imported systems.