If they are right, and the environment beneath Olympus Mons is hot, wet and dark, it would mirror the conditions that many scientists believe gave rise to life on Earth.

• 它不能满足挑剔的食客的要求，但是对于不排斥“非传统食物”，也不那么执著于“天然味道”的人来说，也还是一个不错的选择。