Current Issue

Vol.39 No.2 2025

About the cover: Using FAST, the Five-hundred-meter Aperture Spherical radio Telescope of China, scientists detected a rare pulsar eclipsed by its helium companion. Based on their long- time observation, the team unveiled the ephemeral scenario that could have resulted in this special couple, and further reconstructed its evolution trajectory. Turn to page 99 for detailed scenarios of the binary’s lifetime. (Image: Produced by Bureau of International Cooperation, Chinese Academy of Sciences)