In recent decades

the detrimental impact of aviation has grown into a serious problem for the aeronautical sector. Even while well established modern innovations like high bypass ratio engines and composite materials have enhanced efficiency

there is still a growing need for more environmentally friendly alternatives. In this review

hydrogen-powered distributed propulsion aircraft are considered as an appealing means of reducing emissions and operating costs. In light of its high specific energy

liquid hydrogen is recognized as a major catalyst

requiring developments in lightweight

reusable cryogenic storage systems. The shift to hydrogen-powered aircraft with a fleet adoption rate of 40% by 2050 could offset 250 million tons of carbon dioxide

reducing aviation’s global carbon footprint by 12%. The blended-wing-body concept

offering aerodynamic and environmental benefits

is pointed out as an optimal configuration to integrate distributed propulsion together with boundary-layer-ingestion technologies. This article analyzes the state of the art in hydrogen technologies

blended-wing-body design challenges

and distributed propulsion systems. Furthermore

it evaluates the technological

financial

and regulatory hurdles

suggesting potential development paths to make hydrogen-powered aircraft viable in the future.