Science & Technology Current Affairs - 2026-04-20

Background: The Gaganyaan mission aims to demonstrate India's human spaceflight capability. Cryogenic engines are critical for the heavy-lift launch vehicle (LVM3) to reach orbit. Current Context: On April 19, 2026, ISRO successfully conducted a long-duration hot test of the CE-20 cryogenic engine, which features improved thrust and efficiency. This test was performed at the ISRO Propulsion Complex in Mahendragiri. Impact: This advancement significantly enhances the payload capacity of the LVM3 rocket, ensuring safer and more reliable orbital insertion for future crewed missions, marking a major milestone in India's space exploration journey.

Background: Predicting the Indian Monsoon is complex due to diverse geographical factors. Traditional numerical models often face limitations in long-range forecasting. Current Context: The Ministry of Earth Sciences, in collaboration with leading tech institutes, has unveiled an AI-driven climate modeling tool. This system utilizes deep learning algorithms to analyze historical weather data and satellite imagery to predict monsoon onset and distribution with 85% accuracy. Impact: This tool will provide farmers and policymakers with precise early warnings, helping in better agricultural planning, water resource management, and disaster mitigation against extreme weather events.