APOD 4.6

I chose to write about the Farther Along picture, which depicts the various satellites that have left our solar system and where they are relative to the Sun. The farthest one was launched over 30 years ago and is over 17.5 billion kilometers from the Sun, however this is only slightly more than 16 light hours. The closest stars are several light years, so at this speed it would take millenniums to reach even these close ones, however they are able to reach the outskirts of our solar system and continue their journey to reach interstellar space.