At 15:49 UT (Universal Time), on Monday, May 26th, 2008, Mercury the cosmic trickster turns retrograde in Gemini, the sign of the Twins, sending communications, travel, appointments, mail and the www into a general snarlup! This awkward period begins a few days before the actual turning point (as Mercury slows) and lasts for three weeks or so, until June 19, when the Winged Messenger reaches his direct station. At this time he halts and begins his return to direct motion through the zodiac.
Everything finally straightens out on July 4, as he passes the point where he first turned retrograde. Mercury turns retrograde three times a year, as a rule, but the effects of each period differ, according to the sign in which it happens (see box for Retrograde Periods in 2008).
A planet is described as retrograde when it appears to be moving backwards through the zodiac. According to modern science, this traditional concept arises in the illusory planetary motion created by the orbital rotation of the earth with relation to other planets in our solar system. Planets are never actually retrograde or stationary, they just seem that way due to this cosmic shadow-play.
Retrograde periods, although often problematic for us earthlings, are not particularly uncommon. Each planet retrogrades, except the Sun and Moon. Although a powerful astrological influence, Mercury is quite a small planet that travels at a relatively fast speed through the zodiac. Despite being the closest planet in our solar system to the Sun, it is not always in the same sign as the Sun (for example, although this time Mercury turns retrograde in Gemini, the same sign as the Sun, last year Mercury turned in Scorpio while the Sun was in Libra, but headed back into Libra just as the Sun strode into Scorpio).