Well, glass dome, water, glass dome is a really old idea that would work, if water is readily accessible. something like 50 feet of water would also work for t

Well, glass dome, water, glass dome is a really old idea that would work, if water is readily accessible. something like 50 feet of water would also work for the trip, but water is heavy and you need a lot of it. maybe they can catch a comet, or pull it from the moon. I think there are answers, they're all really expensive answers though.