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 ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. From July 17 to Aug. 10, Mercury will appear to move ...

Mercury will be in retrograde until Dec. 15, the last of four times it appears to move backward in the sky this year. For at least a portion of 2024, nearly every planet in our solar system has been ...

Astronomers have recently been taken aback by the discovery of an object in space that seems to be defying the common laws of celestial movement by orbiting backwards. This surprising discovery, which ...

Through the looking glass: Astronomers have uncovered a planetary system that challenges long-held beliefs about where planets can exist. This discovery suggests the universe may hold far more ...