New Science Organisation

I am looking for someone to design a logo for a new astronomy project that I am involved with. The project is a youth organisation involved in astronomy and space. A facebook page already exists with hopefully a website to follow but I am in need of a logo to represent 'Young Astronomers UK'. The organisation is to represent youngsters who wish to be involved with the science. Ideas are welcome but remember it is the governing body for the project so it take on an adult-look of professionalism in astronomy, and not any child-like imagery. That will come later with the development of cartoon characters to engage with a certain age group.