China is getting serious about planetary defense

630 feet below the Earth in China, an ancient forest blooms at the bottom of a sinkhole

China will soon have a lunar observatory that will form part of a radio telescope covering an area 30 times the size of the Earth, according to scientists. It will be the largest facility ever created for astronomical observation

News at a glance: China’s carbon pledge, ARPA-H’s interim head, and an exascale computer