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What Does It Mean To Give Birth While Mercury Is In Retrograde? Pack Some Earplugs

Romper - Dec 6, 2017
Nope, according to NASA, "Retrograde motion is an apparent change in the movement of the planet through the sky. It is not real in that the planet does not physically start moving backwards in its orbit. It just appears to do so because of the relative ...

One Nation, Totally Divisible And Now Irreparable

Plunderbund - Nov 29, 2017
In too many ways to enumerate now, the 17th state is in retrograde motion, mirroring the mind-set of Republicans in Washington who fear the future if the future means their core beliefs prove false after repeated tries showing American-style ...

Please stick to science

Marshall Independent - Nov 13, 2017
I would have thought someone would have brought up things like stellar parallax, the Foucault pendulum, retrograde motion of Mars, phases of Venus, etc. Actually, these are not proofs, because the heliocentric and geocentric systems are geometrically ...

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Retrograde Motion of Planets Explained

Why do planets occasionally move backward in the night sky? This video explains the phenomena known as retrograde motion. (Spoiler Alert): The apparent backward or 'retrograde' motion of the...

Retrograde Motion

This video surveys observations, historical theories, use of a mechanical demonstration, and compares the apparent motion for all superior planets of the motion.

Retrograde Motion and the Opposition of Mars

Superior planets (planets that are further from the Sun than Earth) can undergo retrograde motion when they are near opposition (the point in the sky that is opposite the Sun). Mars in particular...

Retrograde Motion

The planets normally move from west to east against the background of the stars, but every so often they backtrack for a while before resuming their eastward motion. This is called Retrograde...

Models of retrograde motion Geocentric and Heliocentric