Modern airships

Modern airships are large, lighter-than-air aircraft that use helium or hydrogen to provide lift. Unlike traditional blimps, many feature rigid or semi-rigid frameworks, allowing for more internal space and stability. They are equipped with engines for navigation and can stay airborne for extended periods, making them useful for surveillance, advertising, tourism, or scientific research. Modern materials and technologies improve safety, efficiency, and maneuverability. Overall, they offer a versatile alternative to airplanes and helicopters for specific applications, leveraging buoyant lift to enable slow, stable flight with minimal noise and emissions.