Hi schroedinger, I'm gonna answer this as you requested.
About aliens, i have no idea and i don't see what it is to do with anything or how it can contribute to anything.
Biblical evidence proving anything. Well, comparing the Old Testament to the New Testament respectively which were written centuries apart:
Christ's place of birth: Micah 5:2 and Matthew 2:1
Jesus' ressurection: Psalm 16: 10 and 1 Corinthians 15:3-6
Triumphal entry: Zachariah 9:9 and John 12:12-14
Crucifiction with robbers: Isaiah 53:12 and Mark 15:27
There are also numerous incidents that have been prophecied and fulfilled, for example in Ezekial 26-27, it prophecies the destruction of City of Tyre. If you look it up, it is still a city in ruins til today. There are prophecies about the persecutions on Israel, which are specifically identified in the Bible too.
Here are more sources if you want:
http://goshareyourfaith.wordpress.com/2008/03/02/is-the-bible-divinely-inspired/
http://www.100prophecies.org/page6.htm
It would take ages to type up every prophetic verse but if you look it up the net, you will see them. And your question regarding the second coming of Christ, it may be included in the websites/ if you would look up the Bible, which can be found on the net also if you don't have one.
Since you seem to be so into philosophy/ want to be philosophical, scientists and mathematicians have applied statistics into these prophecies and have found the chances of them being all fulfilled is 1: 2x10^90. That was according to a lecture, which i cannot prove to you online, but if you think about it, the chances of one specific prophecy fulfilled is very small, let alone having all the prophecies have been fulfilled to today with no errors.
This proves the truth of the Bible.
Miracles, which are the display of supernatural powers that violate the laws of nature, can be seen in John 2:1-11, Luke 5:4-11, Mark 5:35-43, Mark 7:31-37, Mark 8:22-26, Luke 7:11;17, Luke 4:38-44, Luke 4:31-37 and Luke 5:1-13.
These speak of Jesus healing the blind, deaf, demon possessed and even the dead.
I've made my points using Biblical excerpts and quotes from actual scientists and mathematicians. Now whether you choose to believe or not, its up to you =]