Before the discovery of these [underwater] vents, all life on Earth, the key to life on Earth, was believed to be the sun and photosynthesis. But down there, there is no sun, there is no photosynthesis; it's chemosynthetic environment down there driving it, and it's all so ephemeral.

Before the discovery of these [underwater] vents, all life on Earth, the key to life on Earth, was believed to be the sun and photosynthesis. But down there, there is no sun, there is no photosynthesis; it's chemosynthetic environment down there driving it, and it's all so ephemeral.