The official lapel pin for the Space Station Expedition 30 mission.
The International Space Station (ISS) program is completing the transition from assembly to full utilization as humankind celebrates the golden anniversary of human space exploration. In recognition of these milestones and especially of the contribution of those whose dedication and ingenuity make spaceflight possible, a fully assembled ISS is depicted rising above a sunlit Earth limb. Eastward of the sunlit limb, the distinctive portrayal of Earth's surface illuminated by nighttime city lights is a reminder of mankind's presence on the planet, most readily apparent from space only by night, and commemorates how human beings have transcended their early bonds throughout the previous 50 years of space exploration.
The ISS, a unique space-based outpost for research in biological, physical, space and Earth sciences, in the words of the crew members, is an impressive testament to the tremendous teamwork of the engineers, scientists and technicians from 15 countries and five national space agencies.
The six crew members of Expedition 30, like those who have gone before them, express that they are honored to represent their countries and the ISS team in conducting research aboard the station and adding to the body of knowledge that will enable the world's space faring countries to more safely and more productively live, work and explore outer space, paving the way for future missions beyond low Earth orbit, and inspiring young people to join in this great adventure.