An unusual space body with parameters similar to a man-made object will approach Earth at an unusually low velocity on an orbit that doesn't resemble any useful spacecraft trajectory. We are fascinated with objects approaching earth from space and there are plenty of people watching the heavens for something out of the ordinary.
What this space object is we may never know but it is interesting that such an extraordinary heavenly body appears now with so many things foreshadowing the return of Jesus. It makes me think of another object that will soon appear in outer space… “the sign of the Son of Man will appear in heaven, and then all the tribes of the earth will mourn, and they will see the Son of Man coming on the clouds of heaven with power and great glory” (Matthew 24:30, NKJ).
What is the sign of the Son of Man? There was a star in the East which confirmed the first advent of the Messiah to wise men from Persia (Matthew 2:1-2). Likewise, there will be an unusual heavenly object that heralds His return… "And there will be signs in the sun, in the moon, and in the stars" (Luke 21:25).
I think it likely that the sign of the Son of Man which everyone sees prior to Jesus again setting foot on earth is the New Jerusalem. Jesus told us, “In My Father's house are many mansions; if it were not so, I would have told you. I go to prepare a place for you” (John 14:2). Among the many things Jesus has been doing since He ascended to the Father is preparing an eternal home for us. This home is in the form of a huge city called the New Jerusalem. Along with the description of the New Jerusalem in Revelation 21 is its size, a footprint of 1,500 miles by 1,500 miles and 1,500 miles high. Whether it is a cube, pyramid, or some other shape remains to be seen.
I’m sure the New Jerusalem is just about completed. It will certainly be finished when Jesus raptures His followers from the planet prior to the Great Tribulation. The New Jerusalem will come down out of heaven at the end of the Millennial reign of Jesus after He recreates heaven and earth (Revelation 21:2). Could it be that the New Jerusalem is in orbit around earth during the Millennial Kingdom? If so, Jesus must bring it with Him when He approaches earth from heaven and it could well be the sign of the Son of Man.
Could you imagine what people of earth will think when they see such a large supernatural object approach earth from space? It will be distressing to say the least. Many will think that earth is being attacked by the Borg. In fact that is not far from the truth. Extraterrestrials will indeed invade earth to put a stop to the War of Armageddon and resistance will be futile. There will be a lot of deception during the Great Tribulation; I think it likely that demons will masquerade as friendly aliens promising their help but intending to lead people away from God. Certainly fallen angels have mixed it up with mankind before, see Jude 1:6.
I look forward to being among the extraterrestrials that return to earth with the Lord. It will be glorious. Anyone who doubts that followers of Jesus will invade earth with Jesus should carefully study John 14:3 harmonized with Revelation 19:8 and Revelation 19:14. Airborne!