Lots of us are looking for an opening date for this !!
By the way, I think what you mean is "Mission Space". Mission to Mars was an attraction at the MK years ago in the building that now houses Alien Encounter.
Now THAT takes me back to my first Magic Kingdom visit in 1976 with my parents! I had forgotten all about that - even that it WAS that circular auditorium where Alien Encounter is now.
Make me feel old, OK? I remember when it wasn't even Mars, it was THE MOON. I was just a little squirt, but I do remember thinking it was pretty boring.
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