China’s first launches of 2026 send Yaogan spacecraft into unusual orbit, loft Guowang satellites  China conducted a pair of ...

The world's first three-satellite constellation on the distant retrograde orbit (DRO) of the Earth-Moon system has been successfully established by Chinese scientists. The development lays a ...

Astronomers have made a groundbreaking discovery that defies the conventional understanding of planetary formation in binary star systems. A planet orbiting in a retrograde direction—opposite to its ...

Retrograde mean motion resonances occur when orbiting bodies, moving in directions opposite to the dominant sense of motion, experience periodic gravitational interactions that can stabilise their ...