Horoscope fans, beware, a weeks-long planetary shift is bringing old secrets and past troubles back to the surface for members of four different zodiac signs. Monday marked the start of Mercury turning retrograde, which astrologers warn has a cosmic connection to communication issues between people, glitches involving technology and travel delays.Four signs expected to feel the impact of this retrograde, which will last until July 23, are Aries, Cancer, Gemini and Taurus.For those born under these star signs, emotions will be in the spotlight over the coming weeks, buried feelings will resurface, clear communication with others will be difficult and home or family matters that were once resolved will return.Setting astrology aside for a moment, Mercury in retrograde means that, from our perspective on Earth, Mercury periodically appears to slow down, stop and move backward across the sky for about three weeks at a time.This optical illusion occurs because Earth sometimes moves faster in its orbit around the sun than Mercury. As we 'lap' the smaller planet, it appears to reverse direction, even though Mercury is still moving along its orbit normally.However, astrology associates the planets with themes in human life. Mercury is linked to communication, thinking, learning, travel, technology, contracts and daily details.When the planet closest to the sun appears to be moving backwards, which happens three to four times a year, astrologists claim the flow of Mercury's energy is disrupted, throwing everything associated with this planet into chaos. Mercury is moving into the star sign of Cancer, which is considered the home of emotions, family, home, roots, security and nostalgia (Stock Image)Right now, this backward movement is taking place while Mercury is in the star sign of Cancer, which is linked to emotions, home life, family, memories and feeling safe and secure.Because of this, the usual Mercury in retrograde mix-ups, such as having trouble communicating your point to someone, feel more emotionally intense and personal during this cycle.First up to feel this planetary impact is Aries, the first sign in the zodiac. The retrograde is expected to have a strong impact on home and family life for all Aries.Old secrets and tense issues with a relative's living situation may resurface in July. Also, words an Aries thinks are meant as criticism may be misinterpreted during the retrograde. An Aries should double-check what someone said before judging.All of this is taking place because Cancer rules Aries's 'fourth house,' which governs home matters, family issues and emotional foundations.A 'house' in astrology refers to a specific sector of someone's birth chart that governs different areas of their life, such as career, relationships or money.Also feeling the weight of Mercury in retrograde is Cancer, the star sign this energy shift is taking place from our perspective on Earth.This means Cancer's first house, tied to self-identity, personal style and how you present yourself to the world, will be affected by Mercury's slowdown. From Earth's perspective, Mercury (Pictured) has entered retrograde, where it appears to be moving backwards through the skyFor Cancers, retrograde could make you feel more introspective or sensitive about how you present yourself to the world.Old conversations or decisions you have made will likely come back up and give you a chance to take another look at how you handled certain situations.Another sign doing some serious thinking about their personal life is Gemini. However, the retrograde will impact the second house of Gemini, tied to money, possessions, self-esteem and values.Geminis will feel themselves reflecting heavily on their finances over the next month, regretting purchases, catching up on old and forgotten bills and potentially questioning their own self-worth.Valerie Mesa, an astrologer and writer for People, said: 'Be careful not to spend for comfort or agree to something just because you feel guilty.'One sign sure to be involved in several frustrating mix-ups and potential travel delays because of poor communication is Taurus.Since Cancer rules the third house of Taurus, which governs communication, transportation and relationships with siblings, anyone born under the sign of Taurus may find themselves struggling to find their words until July 23.This will lead to misread texts, saying something before thinking it through, scheduling disasters related to short trips, like on the Fourth of July, and frustrating conversations with brothers or sisters being brought back up.Following this current three-week stretch, the next and final Mercury retrograde for 2026 is expected to begin on October 24 and run until November 13.