Maltus was an incredibly crowded planet, one of the most heavily populated world's in the universe. Although the Guardians of the Universe and the Green Lantern known as Hal Jordan did what they could to help with the problem, the planet is still one of the most populated planet's in the entire universe.
- ↑ As seen in Gulliver's Gigantic Goof (1973).
- ↑ As seen in The Atlas of the DC Universe (1990).
- ↑ As seen in Gulliver's Gigantic Goof.