SciShow Explains What It Takes for a Planet to Be Habitable

SciShow host Hank Green explains what it takes for a planet to be habitable and how planets get that way. Specifically, Green talks about planet formation, the kinds of similar planets scientists are aware of that might be habitable, and why the Milky Way Galaxy is just right for habitable planets.

What does it really take for a planet to be habitable? It turns out, certain parts of a star system, a galaxy, and even the universe as we know it, are more habitable than others.