Air taxis may become an important part of the U.S. transportation ecosystem, quickly carrying people relatively short distances—and eventually some may fly without a pilot aboard. NASA is helping prepare for that future with research to ensure that fully autonomous flight technology is safe.Air taxis may become an important part of the U.S. transportation ecosystem, quickly carrying people relatively short distances—and eventually some may fly without a pilot aboard. NASA is helping prepare for that future with research to ensure that fully autonomous flight technology is safe.Automotive[#item_full_content]