The peak of Galan volcano is seen in Catamarca
The peak of Galan volcano is seen far in the background at over 4,700m (15,400 feet) above sea level in Catamarca August 4, 2010. A lake in Argentina's remote, inhospitable northwest may offer clues on how life got started on Earth and how it could survive on other planets, scientists say. Researchers have found millions of "super" bacteria thriving inside the oxygen-starved Lake Diamante, in the center of a giant volcanic crater. Picture taken August 4, 2010. REUTERS/Enrique Marcarian(ARGENTINA - Tags: ENVIRONMENT SOCIETY SCI TECH)