Earth-54 is technologically advanced in various scientifical fields; Tommy Tomorrow landed on Mars in 1960 and is the prime space explorer.
"Mars-54" was covered in canals, supported lush jungles, and held the fossilized remains of long-dead dinosaur-like animals.
In the universe of Earth-54, Earth's moon has an atmosphere (but one that is poisonous to humans) and supports plant life that gives off toxic pollen. Humanoid aliens once lived on the moon and left a time capsule that was discovered by Tomorrow in 1967.
Venus is inhabited by a strange fauna and flora, and rains every 5 hours. Judging by the American flag planted on Venus by Tommy Tomorrow, the United States of Earth-54 had not conferred statehood on Alaska and Hawaii by his time.
Crisis on Infinite Earths: The Compendium stated that the following comics were appearances of Earth-54:
- Crisis on Infinite Earths: The Compendium lists entire issues rather than specific stories as being Earth-54 stories so it cannot be determined if stories that don't contradict larger continuity told in those issues happened on Earth-54 or the Earth being depicted at that time.
- Characters from Earth-54
- Other things related to Earth-54
- Earth-54's Comic Appearances
- Reality Gallery: Earth-54
Links and References