Hear David Bowie's song here.
But we Christians look forward to the arrivel of a different kind of alien. He came to Earth two-thousand years ago and promised to return. Luke 24:51 and 52 (BBE) describes how he left our planet. "And while he was doing so, he went from them and was taken up into heaven. And they (The disciples) gave him worship and went back to Jerusalem with great joy."
Luke explains further in Acts 1:10 and 11 (BBE(, "And while they (Christ's disciples) were looking up to heaven with great attention, two men came to them, in white clothing, And said, 'O men of Galilee, why are you looking up into heaven? This Jesus, who was taken from you into heaven, will come again, in the same way as you saw him go into heaven."
The Apostle Paul also wrote of Christ's return, filling in some of the details. He wrote in 1 Corinthians 15:51 and 52 (BBE), "See, I am giving you the revelation of a secret: we will not all come to the sleep of death, but we will all be changed. In a second, in the shutting of an eye, at the sound of the last horn: for at that sound the dead will come again, free for ever from the power of death, and we will be changed."
Paul also wrote in 1 Thessalonians 4:16 and 17 (BBE), "Because the Lord himself will come down from heaven with a word of authority, with the voice of the chief angel, with the sound of a horn: and the dead in Christ will come to life first; Then we who are still living will be taken up together with them into the clouds to see the Lord in the air: and so will we be for ever with the Lord."
What a wonderful hope that our Lord will someday reappear and take us up to be with him. No more will we suffer and be harassed by Satan.
On Monday, I'll tell you how to be in the world without being of it. It seems contradictory until you understand what "of the world" means.