Hydrothermal Vents Quotes

The deep sea is a scary world.

As we descend deeper and deeper in this region its inhabitants become more and more modified, and fewer and fewer, indicating our approach towards an abyss where life is either extinguished, or exhibits but a few sparks to mark its lingering presence.

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.

In the deepest places, where physical norms collapse under the crushing water, bodies still fall softly through the dark, days after their vessels have capsized. They decay on their long journey down. Nothing will hit the black sand at the bottom of the world but algae-covered bones.

The fact that this chain of life existed [at volcanic vents on the seafloor] in the black cold of the deep sea and was utterly independent of sunlight - previously thought to be the font of all Earth's life - has startling ramifications. If life could flourish there, nurtured by a complex chemical process based on geothermal heat, then life could exist under similar conditions on planets far removed from the nurturing light of our parent star, the Sun.

Even in our deep ocean, there are ecosystems at work with no light whatsoever down in the deepest portions of the oceanic abyss.

At the bottom of the ocean, bacteria that are thermophilic and can survive at the steam vent heat that would otherwise produce, if fish were there, sous-vide cooked fish, nevertheless, have managed to make that a hospitable environment for them.

Even if the ocean on Enceladus starts out being as microbially poor as the pelagic ocean on Earth, which is the worst case, we still have a chance of seeing lots of organisms in the plumes.

Deep ocean drilling is not new.

The geysers and hot springs of the Yellowstone are another proof of recent volcanic activity.

The most exciting thing that we have found with Cassini is the geological activity, the geysering activity at the south pole of Enceladus.

There are more active volcanoes beneath the sea than on land by two orders of magnitude.