Why in the News? HSTDV - India has achieved a milestone in its pursuit of hypersonic weapon systems, with the Defence Research & Development Organization (DRDO) successfully testing a scramjet engine that sustained combustion for over 1,000 seconds. Conducted at the newly inaugurated Scramjet Connect Test Facility at DRDL Hyderabad on April 25, 2025, this test marks a transformative moment in the country’s aerospace and strategic defiance capabilities. The roots of this achievement trace back to the Hypersonic Technology Demonstrator Vehicle (HSTDV) program....