[crustaceansoup]

We have a lot of really useful things to learn about life away from Earth even if you assume that life exists elsewhere.

How common is it? In what environments does it occur?

Does it start the same way everywhere? Does it end up going the same directions the same way everywhere? Does it use the same metabolic pathways and the same genetic material?

Even just a confirmation without taking samples or deeper analysis is enough to start on these questions. Right now we can't even really start.