April 7, 2025

Perihelion Summer by Greg Egan

The novel “Perihelion Summer” by Greg Egan was published for the first time in 2019.

Matt Fleming and some of his friends have set up the Mandjet, a mobile aquaculture rig that is self-sufficient. They did it to be prepared for the worst-case scenario when Taraxippus, a black hole that is about to pass through the solar system, comes near the Earth.

Despite the risks of catastrophe on Earth following the passage of Taraxippus, Matt and his friends receive mostly indifferent reactions if not ridicule for the construction of the Mandjet. In the end, the black hole turns out to be a pair whose passage alters the Earth’s orbit in a subtle way but enough to alter the seasons. The possibility of sailing with the Mandjet to Antarctica when Australia is hot to the limit of livability makes it very useful.