Mercury, planet of thought, comes together with assertive Mars in Sagittarius from Dec 29th 2025 to Jan 15th 2026.

This conjunction is part of a larger group of planets in this sign in the New Year period, which puts your focus on meaning and a promise of mental freedom, either through travel or study. Mercury and Mars are planetary enemies, whose different ways of working bring a clash between detail and personal power. Mars is the stronger planet in Sagittarius, and you have a fiery and adventurous approach that closes the gap between you and your competitors.

You can be up-front and inspirational, and your willingness to take a risk breaks you free of any past restrictions. Your problem-solving skill is also a great asset, where you combine knowledge and technique with good intuition. This is a good transit for academic work and research, especially when you are chasing a deadline. Be careful of speaking out in a moment of enthusiasm or ambition, however, especially if you have to fact-check an opinion later on. Committing yourself to a position too heavily can also bring a sharp reaction that you have to extricate yourself from.

A frustrated or unspoken observation made in a high-pressure moment can be explosive, and a careless remark is a big irritant in a close relationship. Mercury and Mars are also under the influence of karmic Saturn at this point, which may delay a work project or hold you back from total freedom and spontaneity. You are tasked with being detached and extra-professional, and may have to simply complete a job or contract to order.