Has your zodiac sign REALLY changed with new Ophiuchus constellation?

NASA’s recent announcement that there is actually a 13th zodiac sign, changing the dates of the other 12 astrological signs, has many people a bit freaked out. But astrologers and astronomers alike say you can relax, pointing out that the supposedly new constellation Ophiuchus was actually discovered thousands of years ago. NBC’s Jo Ling Kent reports for TODAY.Sept. 28, 2016