- Journey into Space:
- In The Red Planet, James Edward Whitaker claims to have been born on September 12, 1940, which is consistent with his appearance being that of a man in his early 30s. However, his actual date of birth is September 12, 1893. Records indicate that he disappeared in 1924. He has not aged a day in the intervening 47 years. After he dies, his body reverts to its true age of 78. The crew later discover that the same is true of every human brought to Mars. They are all at least 15 years older than they appear to be.
- In The Return from Mars, Cassia appears to be 17 but she tells Jet that she is 38 Tribosian years old. Jet believes that this equates to approximately 54 Earth years. However, Cassia tells him that he has miscalculated and her true age in Earth years is 152.
Older Than They Look / Radio