Your star sign may have changed after NASA found their to be 13 instead of 12.
The resurfaced NASA blog claims the extra sign - known as Ophiuchus - is for those born between 29 November and 17 December.
As a constellation Ophiuchus is a snake bearer, and he is said to have been the first doctor.
If this new discovery was in use as an official star sign, it would change the dates for all horoscopes for the rest of the year.
This means some people might find their birthday fell under a different sign.
Your 'new star sign dates'
If Ophiuchus was to be added to the calendar it would make the dates change to the following;
Capricorn – January 20 to February 16
Aquarius – February 16 to March 11
Pisces – March 11 to April 18
Aries – April 18 to May 13
Taurus - May 13 to June 21
Gemini – June 21 to July 20
Cancer – July 20 to August 10
Leo – August 10 to September 16
Virgo - September 16 to October 30
Libra – October 30 to November 23
Scorpio – November 23 to November 29
Ophiuchus – November 29 to December 17
Sagittarius – December 17 to January 20
In a 2016 blog post, NASA explained how the ancient Babylonians divided the zodiac into 12 equal parts, choosing one constellation for each.
But there were actually 13 constellations in the zodiac, so they chose one - Ophiuchus - to leave out.
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