I'd say we'd have a space station or two and we may have already discovered life on other planets(apart from the bacteria on mars) I'm talking multi cellular organisms. We could be learning their languages right now.
I like using these to place on my SmartBoard as the students walk into the room. They look visually pleasing and gets the students in a music mind frame from the start. A selection of 26 beautiful and inspiring quotes about music are available at: http://www.teacherspayteachers.com/Store/Aussie-Music-Teacher