Due to their hover and vertical takeoff and landing (VTOL) capabilities, helicopters possess distinct advantages over fixed-wing aircraft. Able to operate in tight spaces, isolated areas, and places, ...

Helicopters on Mars may sound like something from a science fiction novel — or perhaps just a typical "Doctor Who" episode. But actually, they're not fully confined to the world of sci-fi; after all, ...

Over the past few years, labels such as DJI have pushed drones into the mainstream. If you look closely, you'll notice that a majority of them have four propellers, while helicopters have fewer of ...