Exploratour: Life on Mars?
Life that Survives in Harsh Environments
So far we've taken a look at what life is and at some of the negative results in looking for life in a Martian meteroid and on the planet itself. It doesn't seem like there is life now on Mars. But maybe there is life that could live in an extreme environment like on Mars...or maybe Mars was different in the past. This is what we'll look at now.On Earth, we know that there are many kinds of life which can live in difficult environments. An example of one such creature is shown in this picture. These are smokers, and they live on the bottom of the ocean floor. There it is very cold, it is completely dark, and there is a lot of pressure (think of how your ears feel when you dive to the bottom of the swimming pool).
Maybe lifeforms like these could live on Mars or other planets with extreme environments.