Daily Archives: February 2, 2013

  • Another example of why we’re looking for water.

    Whether in our solar system or beyond, the search for habitable environments is tightly tied to a search for liquid water. The reason is that wherever we find liquid water on Earth, we find life. (The few caveats to this involve mixtures that are so salty that life can’t squeeze the water out of the environment.) So let’s take that as a hypothesis: where you find water, you find life. Absent a life-detection mission to another planet, or a telescope that can detect life elsewhere… how would you test that hypothesis? In other words, how can we test it on