Chinese scientists are constructing a cosmic ray observation station at Sichuan Province.
The station is being 4,400 meters above sea level.
Different detectors are being installed to form a huge "net" to catch the particles generated by cosmic rays in the atmosphere, to help scientists study both the micro and the macro worlds in the universe.
Construction of the first half of the observation station, known as Large High-Altitude Air Shower Observatory, is due to be finished at the end of this year, and the whole project completed at the end of 2020.
Scientists from Russia, Switzerland, Poland, the Czech Republic and other countries hope to bring their scientific equipment to the observatory.
Research teams from Australia and Thailand and other countries will participate in the project directly.