Retrograde Calendar

Real published Mercury, Venus, and Mars retrograde windows — when each one starts, ends, and where things stand today.

Mercury

Not retrograde yet — starts in 87 days.

October 24, 2026November 13, 2026

All published windows
February 25, 2026March 20, 2026June 29, 2026July 23, 2026October 24, 2026November 13, 2026February 9, 2027March 3, 2027June 10, 2027July 4, 2027October 6, 2027October 27, 2027
Venus

Not retrograde yet — starts in 66 days.

October 3, 2026November 13, 2026

All published windows
October 3, 2026November 13, 2026
Mars

Not retrograde yet — starts in 165 days.

January 10, 2027April 1, 2027

All published windows
January 10, 2027April 1, 2027

The backward motion itself is a real, observable astronomical effect — an optical illusion from orbital speed differences, not a guess. What it supposedly does to communication, travel, or relationships is folk tradition, not a scientifically supported claim.

From the blog
Is Mercury Retrograde Really That Bad?
Frequently asked questions
Is retrograde motion a real astronomical phenomenon?

Yes — it's an optical illusion caused by the relative orbital speeds of Earth and the other planet, not a fabricated concept. Its supposed effects on communication, travel, or relationships are folk tradition, not a scientifically supported claim.

How often does Mercury retrograde compared to Venus and Mars?

Mercury retrogrades about 3 times a year for roughly 3 weeks each. Venus retrogrades once every ~18 months for about 40 days. Mars retrogrades once every ~2 years for about 2-2.5 months — real orbital periods, not the same schedule for every planet.

Why doesn't Mars have a retrograde window in 2026?

Because its ~780-day synodic cycle doesn't line up with the calendar year — Mars's next retrograde starts January 10, 2027. Synastri states that plainly instead of inventing a 2026 date to fill the gap.

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