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Now that I introduced you to how science communication can go wrong, let's see why it goes off course sometimes. There are multiple factors, but I think the greatest pitfall in the translation from scientists to journalists and then the public is: The Habitable Zone. A thread:
Because the Habitable Zone is, in fact, NOT what is shown in the GIF before. It doesn't encompass ALL the things that make a planet "liveable" for humans. What it means is that the planet is situated "right" in relation to its host star to have liquid water, in a crude sense.
As you can see by the quotation marks, it's more complicated than that. @ravi_kopparapu published a paper in 2014, taking into account many more factors, like CO2 and H2O dominated atmospheres, planetary mass, stellar type, etc.
