@Hireath Yes, and while distance is key, scientists now consider other factors like a planet's mass (to hold an atmosphere) and internal heat, meaning some bodies outside the traditional zone might still be habitable.
@Hireath WHOAAAA!!! How cool is that! You wouldn't think he could do it. That is absolutely amazing. Thank you for all these awesome facts. I love it. I love looking at him and studying him. Isn't he amazing? I can't even believe he can do that. That seems impossible.