The Chinese national flag soon unfurled from the firmly footed Chang'e 6 lander/ascender. That flag measures 300 millimeters by 200 millimeters (11.8 by 7.9 inches), about the size of an A4 sheet ...

But not before planting China's flag on the Moon's far-less-studied hemisphere that always faces away from Earth — a symbolic move that underlines just how far the country's space program has ...