Man on the moon

Q: Is one obligated to observe the mitzvot on the moon?
A: This question is discussed in the book "Man on the Moon" by Ha-Rav Menachem Kasher (pp. 51-55). It is clear that a person is obligated to perform the mitzvot on the moon. The Torah preceded the world, and not only are we obligated to observe it in Eretz Yisrael and everywhere in the world, but everywhere in the Universe as well. If there were plants of the moon they would obviously not obligated in Terumot and Ma'asrot. It is outside of the Land, but one is obligated in the mitzvot there. How to calculate the times on the moon is a serious question. The halachic authorities have already discussed this issue regarding the North and South Poles, and solved it by using extrapolation, i.e. we can calculate the times there by using the times from place where we do know the times. But the moon is outside of time. The Rabbis therefore rule that a person should continue to follow the time from the place from which he departed. Based on this, it is possible that different people in a space station or on the moon who came from different places will be observing different times. This question has also already been discussed regarding the international date-line. As is known, during World War Two, the students of the Mir Yeshiva escaped and went to Shanghai. There was a dispute when Shabbat should be observed: Saturday, Sunday (because it was over the date-line) or on both days because of the doubt (Ha-Griz of Brisk and the Chazon Ish ruled it should be observed on Sunday and Rav Tikochinsky said that it should be on Saturday). The dispute is whether the International Date-Line is 180 or 90 degrees east of Eretz Yisrael. It is thus possible that different people on the moon are observing different times whether for Shabbat or for day and night.Rav Kasher also writes that one loses performing the mitzvah of Kiddush Levana on the moon. How can one recite it if he is standing on the moon? Ha-Rav Menasheh Klein in Shut Mishneh Halachot (6:259) was asked: Is it permissible to recite Kiddush Levana when people are standing on the moon since it may appear as if you are saying a blessing to them? He answered: Yes, there is no difference (but he writes that it is forbidden to travel to the moon since there is no suitable air and it is dangerous). And it is written in Nefesh Ha-Rav (p. 79 note #7) that one Rabbi said that after man landed on the moon the words "I dance before you [the moon] but cannot touch it" in Kiddush Levana should be changed, but Rav Yosef Dov Soloveitchik said that the intention is that one cannot touch it during the recitation of the blessing since one is on the earth and it certainly should not be changed. Rav Kasher was also asked: Is it even permissible to step on the moon since we say Kiddush Levana and the moon is thus used for a mitzvah (Tashmishei Mitzvah) and it is forbidden to denigrate an item used for a mitzvah? He answers that the moon was not only created for the sake of saying Kiddush Levana. It has an independent value. One can also ask: Is it permissible to step on Eretz Yisrael, since it is a mitzvah to live in Eretz Yisrael and it is thus used for a mitzvah? I see people walking on the Land of Israel since that is also part of the mitzvah, as it says: Anyone who walks four amah (6 feet) in the Land of Israel is ensured on life in the World to Come (Ketubot 111a).