Virgin Galactic's supersonic space plane soared into the upper reaches of Earth's atmosphere Thursday for a milestone test flight. It indicates the company is not far off from sending tourists to space.
원문출처 : https://www.cnn.com/2018/12/13/tech/virgin-galactic-reaches-50-mile-space/index.html
원문출처 : https://www.cnn.com/2018/12/13/tech/virgin-galactic-reaches-50-mile-space/index.html