I found this presumably hidden feature by accident; my keyboard fell so I picked it up. When I did, my background looked like it was in space, the Finder window was open and in the middle of the background there was the sun. On the side a new menu bar showed up; one option said "Today" and the other option, I think, said "Tomorrow." It just looked like my background was traveling through space, it was cool; kind of like when you reboot your computer and it gives you that Apple outerspace show.
My question is: how do i open that feature or application and what is it for?