Are we alone in the universe?

In 1977 a record was placed aboard Voyager 1 and 2. It contained pictures, sounds, music, greetings form Earth in case it was found by extraterrestrials. 

In October 2013 twenty-four French students were given the same mission and they had to answer one question: what would they put on such a CD today to portray the diversity of life and culture on our planet?

You can find an article about the Golden Record here: http://voyager.jpl.nasa.gov/spacecraft/goldenrec.html