Science
NASA’s Helicopter and Rover Make New Progress on Mars – VOA Learning English
NASA reports new progress on Mars for its experimental helicopter and Perseverance explorer.
The U.S. space agency NASA is reporting new progress on Mars for its experimental helicopter and Perseverance explorer. The helicopter, called Ingenuity, completed its ninth flight on the Red Planet on July 5.
NASA described the flight as the most successful…
Continue Reading
