They're exhaust vents of some type.

This is one of these hydrothermal vents.

It's how they find the hydrothermal vents.

Go in through the air conditioning vents.

He's in the vents! He got the diamond!

We also found the deepest vents known yet 5,000 meters the hottest vents at 407 degrees Celsius vents in the South Pacific and also in the Arctic where none had been found before.

And, in a moment, we're going to see a view of the airflow.

And the hydrothermal vents were in an acidic environment.

The vents are emitting a black body radiation an IR signature and so they're able to find these vents at considerable distances.

The next step, you dry your hand just by gliding them under the airflow.

It wasn't my fault, really. Sebulba flashed me with his vents.

We're all choking, and there's smoke pouring through the vents, under the doors.

And he can't understand how this barbarism can be tolerated, and he vents his frustrations.

You put a bit of black plastic on the side of a building, it'll heat up, and you'll get passive airflow.

Here, we're trying to visualize the airflow around the wings of the mosquito with little particles we're illuminating with a laser.

Since this space is a waiting room for outpatients, we usually keep a lid over the vents.

And we also found this spectacular yeti crab that lives near boiling hot hydrothermal vents at Easter Island.

This will allow heat and chemicals to escape through hydro thermal vents, providing more comfortable conditions for underwater life.

What we found is that these rooms remained relatively stagnant until Saturday, when we opened the vents up again.

So at those deep oceanic vents, fantastic chemistry began to happen, and atoms combined in all sorts of exotic combinations.

We find microbial life in every part of the planet in ice, in coal, in rocks, in volcanic vents it's an amazing thing.

And before the discovery of these vents, all life on Earth, the key to life on Earth, was believed to be the sun and photosynthesis.

The red dot is the laser light of the submarine Alvin to give us an idea about how far away we are from the vents.

So with Firefly, what we did is the problem is electronics get hot, and you have to put in vents or fans to keep them cool in most products.

So with Firefly, what we did is the problem is electronics get hot, and you have to put in vents or fans to keep them cool in most products.

In their way they saw many whales sporting in the ocean, and in wantonness fuzzing up the water through their pipes and vents, which nature has placed on their shoulders.

So, we put the room service menus over the vents in the wall, we put blankets at the bottom of the door, we put the kids on the windowsill to try to get some air.

So, having done these expeditions, and really beginning to appreciate what was down there, such as at the deep ocean vents where we had these amazing, amazing animals they're basically aliens right here on Earth.

Now you've heard of hydrothermal vents, but the other discovery is that deep below the sea floor, there is vast reservoir of microbial activity, which we have only just discovered and we have almost no way to study.

And taking them down so that they had access astrobiologists, planetary scientists, people who were interested in these extreme environments taking them down to the vents, and letting them see, and take samples and test instruments, and so on.

I was seeing creatures at hydrothermal vents and sometimes things that I had never seen before, sometimes things that no one had seen before, that actually were not described by science at the time that we saw them and imaged them.

And much of this vast universe, much more may be habitable than we once thought, as we study extremophiles on Earth organisms that can live in conditions totally inhospitable for us, in the hot, high pressure thermal vents at the bottom of the ocean, frozen in ice, in boiling battery acid, in the cooling waters of nuclear reactors.