planet's he takes cities from, but he left Krypton intact. Jor-El correctly theorized that this was because Brainiac detected that the planet would soon explode anyway and decided not to bother wasting a missile on their sun. Jor-El and his brother Zor-El then sent their children to Earth on rockets while studying how to defeat Brainiac and convince their government of the danger to Krypton. At least some of the populace of Argo City also outlive their planet, but rather than preserving their city with an energy shield, they are abducted by Brainiac before the planet's destruction in response to Zor-El studying how to defeat the villain. DC League of Super-Pets In the 2022 animated film DC League of Super-Pets, the destruction of Krypton is depicted as the opening scene of the movie where Jor-El and Lara prepare to send Kal-El to Earth, but in this depiction, Kal-El's pet dog, Krypto, jumps into his carrier to accompany him. Jor-El reluctantly agrees to send him off in the hopes that his son will have a lifelong friend to be there for him. Novelizations Last Son of Krypton The 1978 novel Last Son of Krypton by Elliot S! Maggin contains descriptions of Krypton, mainly referencing the Silver Age version; it describes the planet as a "failed star" with massive surface gravity and extremely hostile, glaciated conditions, which forced extreme adaptation and rapid evolution in the descendants of humanoid space travelers (and their pets, e.g., birds, cats, dogs, monkeys, etc.) who became stranded on its surface in prehistory. This led to an extremely strong, dense, and durable Kryptonian species with unusual physical properties. Maggin describes the rise of a civilization which uses geothermal heat as its primary power source, developing science and technology, but finding it difficult to escape the massive world's gravity. Eventually its internal nuclear reactions led to Krypton's explosion. The Last Days of Krypton Novelist Kevin J. Anderson presents approximately the last Earth year before Krypton's destruction in the 2007 novel The Last Days of Krypton''. Jor-El, Lara, Zod, and Zor-El are the primary point-of-view characters. Following Brainiac's abduction of Kandor, Zod attempts to seize power, eventually leading to a civil war. Here Jor-El manages to avert several disasters threatening Krypton before an attempt to destroy the Phantom Zone by several reactionary council members who Zod had previously imprisoned there destabilizes Krypton's core and destroys the planet. In addition to