Р”Вescribed as non-Euclidean and non- Einsteinian, the slipstream possesses markedly different laws of physics than 'normal' space. Slipspace is not the only such alternate realm: others include denial of locale, natal void, shunspace, trick geodetics and a photon-only realm known as the Glow, all of which were once discovered and studied by the Forerunners. Slipspace is entwined with the physical universe to the extent that phenomena in one realm can affect the other, and with sufficiently sophisticated equipment, transitions between the two forms of spacetime are possible. Our plane of existence is thought to have four dimensions (up-down, front-back, side-to-side and time), but slipspace is an eleven-dimensional spacetime. Slipspace is a tangle of intertwined non-spatial dimensions, comparably similar to a wadded up piece of paper rather like taking the classic 'flat sheet' used to represent gravity and crumpling it up into a ball, thereby creating extra dimensions and shorter spaces between points. In addition, they had developed a great variety of other applications, often involving the manipulation of time and space within a slipspace field.Р”Р„ Covenant assault carrier opens a slipspace vortex. The Forerunners had a far greater understanding of slipstream space, with the abilities to travel nearly instantaneously over galactic distances, transport massive objects through the use of portals, to disrupt slipstream travel from normal space and track slipspace jumps across the galaxy. The Covenant utilizes the same eleven dimensions of slipstream space for travel, though the means they use to make the transition are more sophisticated than those used by humans, as evidenced by their markedly faster journeys from point to point. This enabled humanity to begin colonial expansion beyond their home system. In the year 2291, physicists Tobias Shaw and Wallace Fujikawa were the first humans to successfully implement a device that could safely transition normal matter in and out of slipstream space, the Shaw-Fujikawa Translight Engine. This allows faster-than-light travel without relativistic side-effects i.e., the occupants do not 'warp' time, despite their superluminal speed. By moving matter from the three space dimensions and one time dimension of normal space to slipstream space, one effectively changes the laws of physics for that piece of matter.

Slipstream space is a specific set of eleven 'nondimensions' existing in a very small bundle 'above' the one temporal and three spatial dimensions perceptible to human beings. The Covenant Fleet of Particular Justice coming out of slipspace.

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