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Mercury · Cardinal fire sign

Mercury in Aries

Mercury in Aries is where Mercury sat in the zodiac at the moment of birth, the part of a chart read for how you think, talk and learn. Mercury stays in a sign for two to ten weeks, longer when it turns retrograde. Aries is a cardinal fire sign.

Of the 6,194 well-known people in StarMap's dataset, 441 have Mercury in Aries for the whole of their birth date. Mark Zuckerberg, Marlon Brando and Samuel Beckett are among them. Their commonest Sun signs are Aries (223), Taurus (143) and Pisces (59). 47 more were born on a day Mercury moved into or out of Aries and are left out, because the hour decides and StarMap has no birth time for them.

Mark Zuckerberg and Marlon Brando both have Mercury in Aries.Is your Mercury in Aries?Find out with the free Mercury sign calculator

What Mercury in Aries means

Read for how you think, talk and learn. If this is your placement:

You think in quick, decisive strokes and say what you mean without much preamble. Sometimes you speak before the thought is fully formed, which can come across sharper than intended. You finish other people's sentences and prefer a fast decision to a long meeting.

One placement is one part of a chart; the Sun, the Moon, the rising sign and the planets around them change how it plays out. Draw your whole chart to see the rest.

Famous people with Mercury in Aries

All 441 people with Mercury in Aries, A to Z

Mercury in Aries, from last year to two years ahead

  • 15 April 2026 to 3 May 2026
  • 8 April 2027 to 24 April 2027
  • 31 March 2028 to 15 April 2028

Dates are UTC. A retrograde close to the sign boundary shows as two stays a few weeks apart; born between them, Mercury was back in the sign before.

Questions people ask

How do I know if I have Mercury in Aries?

From your birth date: the Mercury sign calculator works it out from the real sky. Mercury stays in a sign for two to ten weeks, longer when it turns retrograde, so most birth dates settle it; on a day it changed sign, the time decides.

Which famous people have Mercury in Aries?

Mark Zuckerberg, Marlon Brando, Samuel Beckett, Al Pacino and Douglas Adams all have Mercury in Aries. StarMap's dataset of 6,194 well-known people has 441 with it for the whole of their birth date, each with a birth chart.

When is Mercury next in Aries?

Mercury enters Aries on 8 April 2027 and leaves on 24 April 2027. It was last there from 15 April 2026 until 3 May 2026.

More of Aries

Positions are computed from each person’s birth date and place with the astronomy-engine ephemeris, checked against Swiss Ephemeris. Birth data comes from Wikidata; a placement is listed only when it holds for the whole birth date, and a rising sign only with a birth time Astro-Databank records. Readings describe tendencies, for entertainment and self-reflection; StarMap predicts nothing. Every planet in every sign.

Photo credits (48 photos from Wikimedia Commons)

Each link opens the photo’s page on Wikimedia Commons, which states its author and licence.