Scientist go beyond our solar system to find out what lies in the outer space. People are happy when they see nice pictures or learn what has been discovered. Many people know the history of space exploration but they don't know the actual distances that were reached in the events recorded.
There is a fascinating page by bbc that has quite intresting information in pictures that one doesn't need to be intrested in space exploration to understand what is there.
Take a look at this: HOW BIG IS OUR SOLAR SYSTEM (http://www.bbc.com/future/bespoke/space_infographic). You can thank me later.