How often does Mars go into retrograde and which constellation will it go into retrograde next?

also, does it progress to move into retrograde each time in the very next constellation?





or how does it do it?





which constellation and when was it in retrograde last time?





please explain.








thanks for your answers!|||Mars is in Pisces right now and Direct in motion. He is retrograde about 60 to 80 days every 26 months and is the second least retrograde planet, Venus being the rarest.





He will turn retrograde around Dec.20 in 19 degree Leo till March 10, 2010.





The last time he was retrograde was in Jan. 2008 in Gemini|||How it happens is all on here...long answer... http://uk.answers.yahoo.com/question/ind鈥?/a> ... ... possibly TD'd by an astrology fan who thinks all constellations are the same size....Astrological signs are,they are all 30 degrees, but astronomical constellations have different sizes. Aries for example is much smaller than Leo as an astronomical constellation. For what retrograde means,see here too... http://astrology.suite101.com/article.cf鈥?/a>