Gravians

Gravians are a fictional or speculative class of entities described as capable of sensing and manipulating gravitational fields. In science fiction and some theoretical discussions, Gravians may be intelligent beings or autonomous machines that create localized gravity wells, deflect trajectories, or harvest energy from gravitational gradients. The concept uses gravity as both environmental medium and energy resource, rather than a background force.

The name derives from gravity and the suffix -an.

In biology and physiology: In portrayals, Gravians vary in form from crystalline or filamentous silhouettes to energy-based lifeforms. Their physiology is described as adapted to extreme gravity, with mechanisms to modulate local mass distribution and maintain structural integrity. Communication may occur via gravitational perturbations or specialized waves that propagate through the surrounding field.

In habitats and ecology: They are often placed in environments with strong gravity or complex spacetime curvature: orbiting dwarfs, dense planets, neutron-star environs, or artificial habitats with gravity-modulation capacities.

In technology and society: Gravian technology centers on gravity manipulation for propulsion, shielding, and sensing. Societies, if depicted, may organize around the management of mass flows and gravity wells, with trade in potential energy and access to unique gravitational routes for transport.

Cultural role and scholarship: The Gravian concept appears in speculative fiction and in discussions about gravity-based life or computation. It serves as a framework to explore gravity's role in biology, energy, and space travel, while remaining a fictional or theoretical concept without empirical evidence.