Nimi tulee Kurt Vonnegutin romaanista
Kissan kehto.
"... wherein
Borasisi, the sun, held
Pabu, the moon, in his arms, and hoped that
Pabu would bear him a fiery child.
"But poor
Pabu gave birth to children that were cold, that did not burn; and
Borasisi threw them away in disgust. These were the planets, who circled their terrible father at a safe distance.
"Then poor
Pabu herself was cast away, and she went to live with her favorite child, which was Earth. Earth was
Pabu's favorite because it had people on it; and the people looked up at her and loved her and sympathized."
The Books of Bokonon