Valgaus

Valgaus is a fictional celestial body that appears in the science fiction novel "The Last Starship" by author K. A. Grant. Within the narrative, Valgaus is depicted as a gas giant located in a distant star system. Its atmosphere is described as being rich in exotic gases, some of which are vital for the survival of the advanced alien civilization that inhabits its moons. The planet itself is largely uninhabitable due to extreme pressures and temperatures.

The moons of Valgaus are a significant focus of the plot. These moons are home to the Xylos, a species that has developed sophisticated technology and a complex society. The Xylos rely on the unique atmospheric composition of Valgaus for their energy production and for sustaining their delicate ecosystem. Access to these resources and the strategic location of Valgaus in interstellar trade routes make it a point of contention and interest for various factions within the novel's universe. The novel explores the cultural and political implications of humanity's first contact with the Xylos and their home system, with Valgaus serving as the central stage for these interactions. The planet's immense gravitational pull also plays a role in the navigation and challenges faced by the starship crew.