The characteristics Pluto or any other planet has to support alien life depends on the alien life. No one knows what alien life needs to survive because there hasn't been alien life found yet.
pluto
no
it goes to pluto
Yes. Some alien races have peculiar characteristics.
If alien races do exist, they could possibly have hermaphrodite characteristics.
Alien races could possibly have elf characteristics if they do exist.
There is no proof of alien life, if they exists they could have aquatic characteristics.
If aliens exist, the alien races may have mammavian characteristics.
If aliens exist there could be some alien races that have reptavian characteristics.
If aliens exist, some alien races could possibly have equine characteristics.
If aliens exist, some alien races could possibly have ursine characteristics.
If aliens exist, some alien races could possibly have caprine characteristics.