Well I made it up to Neptune tonight and did the first jumping level, and thought it saved the game, but after a little break I started up the game and had to start over. I'll pick it up again tomorrow!
I bet the story would make more sense if I had played the first game. And knew more about quantum physics.
The puzzles are a lot of fun, though! Up until now most have been easy enough to figure out in one pass, but I still felt clever figuring them out, haha.