Like any good detective a close study of the available references indicates that yes, the devil visits heaven, usually to allow god to mess with humans. In both Job1:6 (this is the story of how god crushes Job to win a bet with Satan) and 2 Chronicles 18:20-21 such visits are discussed.
Theologically, only if God calls Satan to heaven.
No he cannot.
Yes, according to Job Chapter 1, satan was there when the sons of god met.
This phrase is mentioned in the Bible in Ephesians 2:2, where it refers to Satan as influencing the world and the beliefs of people. It symbolizes Satan's influence and power over the spiritual realm and how he can manipulate mankind by spreading deception and falsehoods like the atmosphere envelops the earth.
Many Muslims believe that Satan was thrown out of heaven because he refused to bow down before Adam. Christians believe that Satan was thrown out of heaven, but usually for other reasons. Jews believe that Satan is still in heaven as the loyal assistant to God. In this view he was never required to bow down before Adam and Eve.
A Christian tradition says that Satan was the leader of the choir in heaven, before he was thrown out of heaven. On the other hand, Judaism gives Satan a completely different role, as shown, for example, in the Book of Job. Jews believe that Satan was the loyal assistant of God, tasked with testing the righteousness of the faithful, and that he still fills that heavenly role.
Satan said farewell to Heaven when he challenged God.
For there to be descendants of Satan he would first have to exist, which he doesn't. If you do believe in the Christian Satan, he still would have no descendants, because he was never an actual person on Earth. He was always an angel in the kingdom of heaven until God cast him out.
it was lucifer.
With envy & disdain.
A life of eternal fire and burning for Satan in hell.
There are no bad angels in heaven. The bad ones left with Satan after the great war in heaven.
A spirit creature in heaven.
According to Christianity, there were no people before Satan's so-called fall from heaven.