Survival means not being destroyed by the coldness of the lunar night, something like -130 C to even -250 C, for two weeks. Many spacecraft have a radioactive

Survival means not being destroyed by the coldness of the lunar night, something like -130 C to even -250 C, for two weeks. Many spacecraft have a radioactive heat source to heat themselves through the cold stretches. It seems for this one, primarily aimed at developing landing methods, that wasn't thought to be worth it.