Habitable Planet Found! Er, Not Really. Gliese 581g

Credit: Lynette Cook

I’m getting kind of sick of seeing the headline: “THIS PLANET IS HABITABLE,” when there is no way to know that without much more precise and sensitive measurements. What astronomers are actually saying is they’ve found a planet that sits in the “Habitable Zone” around its star. “Habitable Zone” is just a … Continue reading