Planets turn retrograde when they appear to be moving backwards from our vantage point on Earth. When a particular planet goes retrograde, the themes of that planet will be impacted. Retrogrades get a ...

What happens when a planet defies every expectation of how worlds are supposed to form and move? In the nu Octantis system, astronomers have confirmed the existence of a planet that orbits in the ...

We've all heard the saying "is Mercury in retrograde?" but what does the famous saying mean? Here is everything to know and ...

The third and final Mercury retrograde is starting from Nov. 25 until Dec. 15. The Perseid meteor shower kicks off Thursday, July 17, but that isn't the only thing to watch for; the Mercury Retrograde ...

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 ...

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 ...

The survival of the valid. Peer review ; The scientific method -- Birth. The bowl of night. The two-sphere universe ; Coordinate systems l The sun -- Epicycles and relative motion. A mechanical ...