Except that what we know as Night is a time when thousands apon thousands of solar systems residing in air-like matter without gravity can be seen, because the planet is turned away from the sun. And the Sea is a load of salty water, confined to one planet, in one solar system, in that view that comes at Night. So, nooooooo, there's no difference! (Sorry, I'm a bit grumpy 'cause my Mom misplaced some school papers of mine) Sigh... and there was no point to that.