Earth Stamp Honors Dawn

The second in my series honoring the satellites that are exploring our Solar System and beyond. The first honored Voyager I and was issued in 2012 as it approached the known edge of our solar system. This one honors Dawn whose mission is to explore Asteroids and Dwarf planets in the inner system. These are probable sites for human exploration in this century. The image on the left depicts the probe approaching the dwarf planet Ceres which it will do in March of this year. The image on the right is of the large asteroid Vesta which it explored for over a year on its way to Ceres.