NASA @NASA
Electric cars? Sure. But how about electric planes? Our all-electric X-57 Maxwell aircraft is one step closer to flight after passing extreme heat and cold tests. This experimental @NASAAero plane aims to make flying cleaner, quieter, and more sustainable: https://t.co/TI3DUHw427 https://t.co/QgNddflsP5 — PolitiTweet.org