If you've been following the media hype on the zodiac signs changing (heck, I even saw the story on MSNBC this morning), take a deep breath and relax.
According to our astrologer Rob Brezsny, it's all crap.
From his essay, "Here We Go Again with the 'Zodiac Is Wrong' Scam":
Every year or so, another astronomer erupts into the mainstream media with a portentous announcement about how, due to the precession of the equinoxes, the astrological signs are no longer aligned with the actual constellations. Often the supposed 13th constellation, Ophiuchus, is also invoked as a further proof of how delusional astrologers are.
What it means, according to these experts, is that astrology is invalid. Most of the people who think they're Tauruses are actually Aries. Most Scorpios are really Libras. And so on. ...
I understand that scientists like him would prefer not to lower themselves to the task of actually doing research about how astrology works. But if they're going to question its foundations, they should at least learn it well enough to know what they're talking about.