Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Mercury retrograde is happening again. If you believe ...

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 ...

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 ...

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 ...

The Gaia space telescope has measured the acceleration of the Solar System when it orbits the center of our Milky Way galaxy. The Solar System motion relative to the stars agrees with the results by ...