BEIJING, June 6 (Xinhua) -- As of Friday morning, the Tianwen-2 probe had been operating smoothly in orbit for over eight days, reaching a distance of more than 3 million kilometers from Earth ...

BEIJING, June 6 (Xinhua) -- As of Friday morning, the Tianwen-2 probe had been operating smoothly in orbit for over eight days, reaching a distance of more than 3 million kilometers from Earth, ...