Final answer:
Laika's story is famous due to her being the first Earthling in orbit, marking a significant moment in space exploration, and her subsequent death in the mission which highlighted the costs of scientific progress.
Step-by-step explanation:
Laika's story has resonated globally due to her role as the first living being from Earth sent into orbit, which marked a pivotal moment in the space exploration era. Her journey aboard Sputnik II was not just a technological achievement but also a poignant story about the sacrifices made in the pursuit of scientific advancement. Unfortunately, Laika did not survive the mission, making her the first casualty of space exploration and deepening the impact of her story on public consciousness. The emotional aspects, the historical context of the space race, and the ethical considerations around animal testing all contribute to why Laika's story remains famous around the world.