In a surprising exploration detailed in Mary Roach's book "Packing for Mars," it is revealed that humans are capable of engaging in intimate activities in a weightless environment, although they face challenges in maintaining physical contact. This difficulty led covert researchers to discover that having a third person assist by providing timely pushes can significantly improve the experience. This method is akin to the mating rituals observed in dolphins, where a third dolphin is consistently present during copulation.

Basing their findings on this aquatic behavior, the researchers coined the term "Three Dolphin Club" to describe the unique dynamic of human intimacy in space. This term is inspired by the idea that just as dolphins rely on a companion for support during mating, astronauts could also benefit from a similar arrangement in their journeys beyond Earth. The humorous and insightful nature of Roach's findings sheds light on the complexities of human relationships in the extraordinary context of space travel.