Berlin-based eVTOL startup NEX Aero received €3.5M ($3.8M) in the seed financing round from Heatchy Investments GmbH & Co. KG. NEX Aero aims to revolutionize regional air mobility by developing the first hydrogen-powered long-distance eVTOL (electric Vertical Take-Off and Landing aircraft). With a range of over 500 km, their lift+cruise design eVTOL enables both vertical…