A Script(ural) Change?

When humans finally establish permanent colonies on the Moon or Mars, should the Christian colonists change a bit of wording in the Lord's Prayer? For example, instead of saying "on Earth as it is in Heaven," will we say "on the Moon as it is in Heaven," or "on Mars as it is in Heaven"? Will God mind if the colonists just go ahead and change it, or does the Pope have to convene Vatican III to deliberate the matter first?