Nasa is collaborating with a number of partners on a number of electric airplane projects that could have a major impact on the future of aviation.
The agency is working on multiple technologies that could be used to power aircraft, including electric motors, batteries and fuel cells.
Nasa is also working on developing a new generation of electric aircraft that could be used for commercial flights.
The agency's work on electric aircraft is part of its larger effort to reduce emissions from the aviation sector, which is one of the fastest-growing sources of greenhouse gas emissions.
Nasa's work on electric airplanes is also part of its effort to reduce noise pollution from aircraft.
In addition to its work on electric aircraft, Nasa is also working on a number of other emerging technologies that could have a major impact on the future of aviation, including autoland systems, pilotless aircraft and supersonic planes.