The first advanced ultradeep ocean drilling vessel independently developed by China was officially named Mengxiang, meaning dream in Chinese, on Dec 18.
China completed its first 3,000-meter ultra-deepsea three-dimensional seismic exploration on Dec 21, according to China National Offshore Oil Corporation (CNOOC).
Availability of Huanliu-3 (HL-3), China's new-generation artificial sun, was announced to the whole world on Dec 14, an invitation to scientists around the world.
A Long March 5 carrier rocket was launched from the Wenchang Spacecraft Launch Site in South China's Hainan Province on Dec 15, sending the Yaogan-41 satellite into orbit.
State Grid Corp of China, together with local forestry departments, is actively exploring ways to achieve the joint governance of electricity and forestry, keeping people safe during the forest fire seasons.
China's installed capacity of renewable energy has exceeded 1.45 billion kilowatts this year, accounting for more than 50 percent of the country's total installed power generation capacity, according to data released by the National Energy Administration.
The Long March-7 Y8 carrier rocket, tasked with sending China's space station cargo craft Tianzhou-7 into orbit, was transported to the Wenchang Spacecraft Launch Site in the southern province of Hainan on Thursday.
The protection project of the Valongo Wharf Archaeological Site in Rio de Janeiro of Brazil has been completed and delivered to its buyer.