The first emergency operation in the history of China's human spaceflight program ended on Jan. 19 when an uncrewed Shenzhou 20 capsule damaged by a space-junk strike came safely down to Earth.
ALMA is the most powerful radiotelescope in the world, and among its many scientific endeavours is the study of protoplanetary disks around young stars. The process of planet formation is a major theme in astronomy, and with its ability to reposition its 66 radio antennae, ALMA can zoom in on dusty protoplanetary disks and spy the early indications of exoplanet formation.
