You are given a sentence in Spanish. Your job is to translate the Spanish sentence into English.

Entonces, Biosphere 2 tenía una superficie de 1.2 hectáreas y era esencialmente un pequeño mundo completamente aislado en el cuál viví durante dos años y 20 minutos.
So Biosphere 2 was essentially a three-acre, entirely sealed, miniature world that I lived in for two years and 20 minutes.