1. China discovers rare crescent-shaped impact crater

Chinese scientists have recently discovered a crescent-shaped impact crater in Yilan county, Harbin, Northeast China's Heilongjiang province. This is the second confirmed impact crater to hit China.

It is estimated that the impact crater hit China about 49,000 years ago. Based on the analysis of existing crater data, the Yilan collision is the largest impact crater event to have occurred on Earth in the last 100,000 years.

2. New discovery in topological quantum computing

Researchers from the University of Science and Technology of China recently found that the zero-mode braiding process of secondary fermions is immune to local noise and preserves the conservation of quantum intertext resources.

They also discovered that the zero-mode braiding process of secondary fermions is immune to local noise and preserves the conservation of quantum intertext resources, hence it is possible to perform universal and fault-tolerant quantum computing by means of weaving operation and magic state extraction.

3. Photodynamic makes teeth whiter and healthier

Researchers from Tianjin University and the Tianjin Medical University Stomatological Hospital created a new type of photosensitizer, zwitter-ion modified hydrophilic porphyrin, which can effectively remove 95 percent of the streptococcus mutans biofilm on the tooth crown.

Lhasa Gonggar Airport's Terminal 3 in the Tibet autonomous region in February. [Photo by Kunga Lesang for China Daily]

4. Largest airport terminal in Tibet begins operation

After more than three years of construction, the largest airport terminal in Southwest China's Tibet autonomous region began operation on Aug 7.

Terminal 3 at the Lhasa Gonggar Airport looks like a lotus flower from above. It will help the airport meet the target of handling nine million passengers and 80,000 tons of cargo and mail by 2025.

Located in Gonggar county in Shannan city, and close to the regional capital of Lhasa, Lhasa Gonggar Airport is the largest airport in Tibet.

5. 2 halves of cross-sea bridge connect in Fujian

Two halves of the Quanzhou Bay cross-sea bridge -- built simultaneously from both sides -- were joined together on Aug 6 in coastal Fujian province. It is the world's first bridge for high-speed trains over a body of water and will support speeds up to 350 kilometers per hour.

The 20.29-km bridge, with a cross-sea segment spanning about 9 km, is a cable-stayed bridge, which was chosen for its strength.

The bridge is an integral part of the 277-km Fuzhou-Xiamen high-speed railway, China's first cross-sea high-speed line. The railway, which connects Fuzhou with Xiamen in Fujian, is expected to be completed next year.