We don't want to alarm you, but the star sign you've had your whole life has just changed.
According to NASA, there is a 13th zodiac sign and it's thrown everyone else out of whack!
In fact, a whopping 80 per cent of you are just about to find out that the star sign - which has may have informed exactly how you live your life each month - has actually been somewhat inaccurate.
This is because the dates defining horoscopes haven't been updated or reassessed since they were calculated more than 200 years ago.
The Earth's rotation doesn't exactly match the 365 day calendar year we use, and over time the earth's axis has actually moved and the skies we see now are different. So, a lot of our star signs have actually changed!
And now NASA has dropped the bombshell that there is a new star sign called Ophiuchus. There are now 13 signs in total.
Supposedly Ophiuchus really did exist all this time and we just didn't know about it ...
If you are an Ophiuchus, you are apparently wise, rebellious, and likely to fight for justice.
Very interesting, but unfortunate for anyone with a zodiac tattoo ... in fact, a lot of people aren't too happy about it - listen to what The Hits listeners had to say about it above!
Here's the updated list of star signs with the corresponding dates:
Capricorn: Jan 20 - Feb 16 (Original dates: December 22 - January 19)
Aquarius: Feb 16 – March 11 (Original dates: January 20 - February 18)
Pisces: March 11 – April 18 (Original dates: February 19 - March 20)
Aries: April 18 – May 13 (Original dates: March 21 - April 19)
Taurus: May 13 – June 21 (Original dates: April 20 - May 20)
Gemini: June 21 – July 20 (Original dates: May 21 - June 21)
Cancer: July 20 – Aug 10 (Original dates: June 22 - July 22)
Leo: Aug 10 – Sept 16 (Original dates: July 23 - August 22)
Virgo: Sept 16 – Oct 30 (Original dates: August 23 - September 22)
Libra: Oct 30 – Nov 23 (Original dates: September 23 - October 23)
Scorpio: Nov 23 – Nov 29 (Original dates: October 24 - November 22)
Ophiuchus: Nov 29 – Dec 17
Sagittarius: Dec 17 – Jan 20 (Original dates: November 23 - December 21)