* Astronomy

Main structure of world's longest cross-sea bridge finished

The main structure of world's longest sea bridge linking Hong Kong, Zhuhai and Macao was completed Friday, the builders said.
It took seven years to build the bridge, which will be open at the end of the year, said Zhu Yongling, director of the management bureau of the bridge.
The main structure measures 29.6 kilometers, consisting of a 22.9-km bridge section and 6.7-km underground tunnel. The bridge's total length is 55 kilometers.
Read more