Iran's claim of striking a US F-35 has stunned military watchers worldwide. The stealth fighter-often described as nearly "invisible"-is designed to evade radar, not disappear entirely. So how could it be targeted? Early analysis points to a mix of infrared tracking, low-frequency radar, and layered air defence systems that can detect stealth aircraft under certain conditions. Advanced systems like long-wave radars and networked sensors may expose vulnerabilities in even the most sophisticated jets. But key questions remain: was the aircraft truly hit, or just damaged? And does this mark a turning point in modern air warfare?