Pulsarite

Pulsarite is a fictional element that appears in the science fiction universe of the novel *A Fire Upon the Deep* by Vernor Vinge. Within the narrative, pulsarite is depicted as a highly unstable and energetic material found in the vicinity of neutron stars, commonly referred to as pulsars. Its properties are intrinsically linked to the intense gravitational forces and radiation emitted by these celestial objects.

The primary characteristic of pulsarite is its volatile nature, making it exceptionally difficult to handle and process. It is described as being capable of undergoing spontaneous, uncontrolled energy releases, akin to miniature supernovae. This inherent instability is attributed to its atomic structure, which is theorized to be uniquely affected by the extreme conditions found in pulsars. Despite its dangers, pulsarite possesses immense power potential, making it a coveted resource for advanced civilizations seeking to fuel their technologies.

In *A Fire Upon the Deep*, pulsarite serves as a critical plot device, particularly in relation to the interstellar ship called the *Mind*. The ship's power source relies heavily on pulsarite, and its manipulation is central to the story's conflict and resolution. The material's scarcity and the risks associated with its acquisition and use highlight the technological disparities and inherent dangers present in the novel's richly imagined universe. The concept of pulsarite also contributes to the novel's exploration of the limits of physics and the potential for exotic matter to shape advanced civilizations.