Bad news, stargazers. Mercury, that ever-troublesome messenger, is going retrograde at the end of this week. In a physical sense, this means the mischievous little planet will pass Earth in its journey around the sun, making it appear to be moving backwards (hence the "retro" thing). What does this mean for your horoscope? Mercury in retrograde signals a period of pretty much everything in your world going just a little bit wrong. From communication to technology to transportation, expect all the areas of everyday life that fall under Mercury's purview to cause some drama until July 1.