Beautiful program! Very well graphics and effects. Looks like an interactive science movie. I've enjoyed a trip across a solar system with a big bright star. I hoped to see a core :) WSAD controls are a really good decision. Mouse wheel as a speed control works perfect. Interface looks nice :) When I tried to move to a center of Milky Way, the program ran out of memory. Looking forward to see more stable soft. I will recommend Space Engine to my friends.