YOU SAID:
My lifespan is shorter than a red rocket
INTO JAPANESE
私の寿命は赤いロケットよりも短い
BACK INTO ENGLISH
My life is shorter than the Red Rocket
INTO JAPANESE
私の人生はレッド ロケットよりも短い
BACK INTO ENGLISH
My life is shorter than the Red Rocket
That didn't even make that much sense in English.