supersonic x plane]
By HT Correspondent | Agence France-Presse, Washington
UPDATED ON APR 04, 2018 10:20 AM IST
As early as mid-2022, NASA plans to fly the X-plane over certain, yet-to-be-determined US cities to collect data and gather community responses.
Enter your email to get our daily newsletter in your inbox
Get our daily newsletter in your inbox
Thank you for subscribing to our daily newsletter.