house life it must be:
Close enough to its sun to receive enough energy.
Not so close to its sun that it's too hot for liquid water to exist.
This region around a star is known as the 'habitable zone'.
To learn more about: Habitable Zone , here & click here.
Stellar Ecospheres - The Habitable Zone of Stars & click here.
How Many Habitable Planets & Moons...
How Many Habitable Earths Are Out There?
How Many Habitable Planets Could Be Out There?