How are aliens born?

The concept of alien birth varies widely in Science Fiction and speculative theories, as there is currently no scientific evidence of extraterrestrial life. Some stories depict aliens as being born from eggs, while others suggest they may be hatched from spores or emerge from different biological processes altogether. In astrobiology, any potential life forms on other planets might reproduce in ways that are completely unfamiliar to us, potentially involving unique genetic mechanisms or environmental adaptations. Ultimately, without concrete data, the birth of aliens remains a topic of imagination rather than scientific fact.