That has been getting a lot of press lately, but as an evolutionary biologist I think it is a claim without merit. We talk about life like we have a clue what it is. In fact science has zero explanation for the existence of life. We don't know what it is, why it is, if it's common or unique. We can't make it, we don't even know what life needs.
You will hear NASA talk about the "habitable zone", not too hot or cold. They search for water and oxygen on planets. But why? The life here evolved here and may be extremely different than the norm. Perhaps most life lives in stars and requires temperatures orders of magnitude greater than here? Perhaps water is a poison to most life? Oxygen, for example, destroyed most of the life on Earth when it first appeared.
The reality is that with only one example a conclusion cannot be drawn. It seems likely to me, but it is not likely in the mathematical sense. It is possible that this is it. One weird place that something inexplicable happened that led to what we call life. Since all living things on Earth are related and really represent one living thing, it seems to have only started here once anyway.
