Brasilios
Brasilios is a fictional planet featured in the science fiction novel "Project Hail Mary" by Andy Weir. It is the home world of the alien species known as the Eridians. The planet is located in the Tau Ceti system and is characterized by its atmosphere and surface conditions, which are suitable for Eridian life but hostile to humans.
The Eridians, also known as the Astrophagi, are a sentient species that evolved on Brasilios. They are
The planet plays a significant role in the plot of "Project Hail Mary" as it is the