The USA claims to have traveled to the moon in 1969. BUT... The temperature on the moon at day is 100 C and at night is -173 cold. How did the astronauts not die?? How did they survive?
Excessive heat loss during lunar night was not a concern; the astronauts needed sunlight to perform their EVAs. Excessive heat gain during lunar day was a concern, at least initially. Because of these concerns, all of the moon landings occurred shortly after lunar dawn.
The first few lunar landings only lasted a couple of days, with the spacecraft lifting off the Moon's surface well before lunar noon. None of the feared consequences of excessive heating arose. The astronauts wore good boots. This enabled longer stays on the surface of the Moon in later Apollo missions. Even so, the practice of landing shortly after lunar dawn continued. Those early morning landings provided excellent relief of the terrain during landing and it provided the opportunity for longer stays on the surface of the Moon.