Since 1977 the Voyager space probes have been travelling through the interplanetary neighborhoods and after 2015 it will be the first human object to reach interstellar areas. Beyond 2015 the probe will have passed the heliopause and will have gained enough distance to steer away from the Sun’s forces for ever.
It has even a Golden Disc with enough information to make an alien race aware of the fact the they are not alone. Nice twist of situations: other alien species are not alone. We are here too 😀 Via [Geekasraesexy].