Certainly lot's of light on the moon, at least two week long days,
UT Researchers Discover Water on the Moon is Widespread, Similar to Earth’s
“Now we have ready sources of water that can be consumed by plants and humans but also electrolyzed into liquid hydrogen and liquid oxygen to develop rocket fuel,” Taylor said. “Until the recent discovery of water in and on the moon, it was going to be a very energy-intensive endeavor to separate these elements from the lunar rocks and soil.”