It's not feasible in earth's atmosphere, but seem to be feasible in mars: https:...

		neurostimulant on March 1, 2021 \| parent \| context \| favorite \| on: The Mars Helicopter Is Online and Getting Ready to... It's not feasible in earth's atmosphere, but seem to be feasible in mars: https://www.nasa.gov/directorates/spacetech/niac/2017_Phase_...