👉 Jupiteria is a fictional concept in science fiction, often used as an extended universe or alternate reality where the Earth and other planets are replaced with a large, spherical planet named Jupiter. This concept was first introduced by Robert A. Heinlein in his 1950 short story "The Red Planet," which expanded upon the Earth-centric world of science fiction. The term is commonly used to describe the vast expanse beyond our solar system that is home to numerous moons and planets, as well