User blog comment:EmpyreanSmoke/Supernatural Q&A/@comment-79.115.68.194-20150901192409/@comment-24834479-20150903222341

1. Based on what characters have said (Death, Gabriel, Metatron, etc), I would say there is life on other planets. However this hasn't really been talked about in the writing room.

2. Eve was either directly or indirectly created by God (coming from Leviathan).

3. Oberon made the fairies, but we haven't dwelled into his origin.

4. They were thought to be completely wiped out, but few of them escaped and still roam the earth.

5. In all honesty the spheres of the Angels isn't all that clear. Most of the fans and some of the writers separate the Seraphim from the Angels we usually see, but other writers think that they are one and the same. There is no definite answer as to the difference between Seraphim and the common Angels.

6. After Luciter was locked in his cage, some of the demons looked for him (including azazel), but most of them just tried to spread chaos across the earth.

7. Jesse is more powerful than lucifer was. When Lucifer walks the earth, Jesse's power can reach its full potential.