A seven-year, eight-million-kilometer voyage expected to shed light on the mysteries of Mercury, the solar system's least-understood planet, is nearly ready for takeoff.
원문출처 : https://www.cnn.com/2018/10/19/health/mercury-bepicolombo-mission-launch-intl/index.html
원문출처 : https://www.cnn.com/2018/10/19/health/mercury-bepicolombo-mission-launch-intl/index.html