Photo taken on December 30, 2008 shows a GPS reference point set by Chinese 25th Antarctic expedition team in Antarctica, on December 30, 2008. The Chinese 25th Antarctic expedition team carried out scientific research on cartography and biologic sampling to study the terrain and environment of Antarctica on Tuesday. [Xinhua]

Members of Chinese 25th Antarctic expedition team make cement foundation in Antarctica, on December 30, 2008. The Chinese 25th Antarctic expedition team carried out scientific research on cartography and biologic sampling to study the terrain and environment of Antarctica on Tuesday. [Xinhua]