But, before we get to Mars' potential impact on your Friday night plans, here's what it actually means to have the sun and Mars "in opposition" to each other. Now that the sun is officially in Leo, it's across the Wheel of the Zodiac from Mars, which has been in Aquarius since May . When two planets are six signs apart, they create an astrological aspect known as an opposition. This Friday, July 27, is the day that they will directly oppose one another, making their combined influence the strongest.