When working positively, retrograde Mercury in the eighth house of a horoscope in the sign of Aquarius can bless the native with good results related to marriage, profession, authority, fame and many other types of good results depending on the overall tone of his horoscope. Such benefic retrograde Mercury can render many types of good results to the natives through their marriages, when joined by marriage favoring planets in their horoscopes. Benefic retrograde Mercury in the eighth house in the sign of Aquarius can bless some natives with husbands or wives who may be the citizens of foreign countries and these natives may settle abroad on the basis of their marriages. For example, if benefic retrograde Mercury is placed in the eighth house of a horoscope in the sign of Aquarius along with benefic Venus, benefic Jupiter is placed in the ninth house of this horoscope in the sign of Pisces along with benefic Mars; and benefic Saturn is placed in the twelfth house of this horoscope in the sign of Gemini, the native may witness this result. The native boosted by benefic retrograde Mercury in the eighth house in the sign of Aquarius and other benefic planets may get married to a woman who may belong to a foreign country and he may settle abroad on the basis of this marriage.
Benefic retrograde Mercury in the eighth house in the sign of Aquarius can impart success to the natives under its influence through many fields of profession, when present in tune with profession favoring planets in the horoscopes of these natives. Some natives boosted by such benefic retrograde Mercury may engage in professions related to the domain of science and they may achieve success as astronomers, scientists, doctors, engineers, IT professionals and other such professionals. For example, if benefic retrograde Mercury is placed in the eighth house of a horoscope in the sign of Aquarius, benefic Sun is also placed in the eighth house of this horoscope, benefic Ketu is placed in the sixth house of this horoscope in the sign of Sagittarius, benefic Rahu is placed in the twelfth house of this horoscope in the sign of Gemini and benefic Saturn is placed in the first house of this horoscope in the sign of Cancer, the native may become an astronomer. The native boosted by benefic retrograde Mercury in the eighth house in the sign of Aquarius and other benefic planets may pursue the course of his higher studies in the field of astronomy and he may become a professional astronomer after completing his studies. The joint impact of such benefic retrograde Mercury and other benefic planets can bless this native with a well paying job of an astronomer and he may witness success and recognition through this field of profession.
At the same time, if benefic Moon is placed in the twelfth house of this horoscope in the sign of Gemini along with benefic Rahu; and benefic Mars is placed in the fourth house of this horoscope in the sign of Libra when all other planets are placed in the already mentioned houses of this horoscope, the results may improve a lot. The native boosted by benefic retrograde Mercury in the eighth house in the sign of Aquarius and other benefic planets may receive a job offer from a foreign country and he may move to such foreign country as an astronomer. The joint impact of such benefic retrograde Mercury and other benefic planets can bless this native with very good amount of money and success as an astronomer in a foreign country and he may also receive the citizen status of such foreign country on the basis of his profession. Apart from this, benefic retrograde Mercury in the eighth house in the sign of Aquarius can bless the natives with success through many other fields of profession, if joined by profession building planets in the horoscopes of these natives.
On the other hand, malefic retrograde Mercury in the eighth house of a horoscope in the sign of Aquarius can trouble the native with problems related to marriage, profession, health and many other types of problems depending on the overall tone of his horoscope. Some natives may get hit by this malefic retrograde Mercury in the field of their marriage due to which they may have to face many types of problems related to this field. Malefic retrograde Mercury in the eighth house in the sign of Aquarius can cause disturbances in the marriages of some natives and these disturbances may break their marriages, if more negative planets get added to their horoscopes. In an extreme case of this type when present in combination with other malefic planets, malefic retrograde Mercury in the eighth house of a horoscope in the sign of Aquarius can break more than one marriage of the native, unless there is a strong marriage saving planet in his horoscope.