How cold is it on the moon?
Daytime on one side of the moon lasts about 13 and a half days, followed by 13 and a half nights of darkness.
When sunlight hits the moon's surface, the temperature can reach 253 degrees F (123 C).
The "dark side of the moon" can have temperatures dipping to minus 243 F (minus 153 C).
Why are the flowers that bloom at night generally white?
Most of the night flowers are generally white because white emerges better in low light conditions making it simpler for insects to discover.
As they bloom at night the plant does not have to waste resources producing coloured pigments (for petals) to attract day insects (such as bees) - most night blooming flowers are pollinated by moths and bats.
Night blossoming blooms are ordinarily vigorously scented - which goes about as an attractant for nighttime insects and mammal's.