Whether there is life in another place in the 3-dimensional universe, only God knows.......C.S. Lewis in his space Trilogy surmised that there could be.
BUT, it is certain that there is life in another dimension - the spiritual one......the one in which God lives and who calls Himself “the God of the living....” Jesus told the woman at the well that “God is spirit.....”, not flesh and blood.
His Son, Jesus Christ, had been in that dimension for all eternity - BUT about 2000 years ago entered this dimension and took on flesh and blood, and forever now retains His physical body.
SciFi nuts love the thought of other dimensions, and indeed, there may be 5 or more.
But the 4th dimension - the spiritual one - was clearly spoken of and revealed by the Lord Jesus Christ, and written about much by the apostles John and Paul...........” . . . we look not at the things which are seen, but at the things which are not seen; for the things which are seen are temporal, but the things which are not seen are eternal.” II Corin. 4:18. or 2 Corin. 4:18 - whichever one prefers. ;-)