The Bible uses the symbolism of heavenly bodies to describe the work of God. Specifically, the symbols of the stars, the moon, and the sun are used in describing the next life (1 Cor. 15: 40-42 and other places). Is it a shock to find the same symbols on some LDS temples, given that the temple is about preparing us for the next life?
Also, in Revelation 22:16, Christ refers to himself as "the bright and morning star," and for early Latter-day Saints, the morning star symbol referred to the coming of Christ and His millennial reign - a perfectly appropriate symbol for the temple.
For documentation, please see the excellent article by Matthew Brown, "Inverted Stars On LDS Temples," available at http://www.fairlds.org/pubs/Stars.pdf, 2002. This article also shows that stars, including inverted stars, were used by early Christians as valid Christian symbols. Inverted stars did not become associated with the occult until after the time of Joseph Smith, as Brown documents.
Also, stars, including inverted stars, were used by early Christians as valid Christian symbols. Inverted stars did not become associated with the occult until after the time of Joseph Smith, as Brown documents. The symbol of the star - whether it has five or six points - and the pentagram can be used for good or evil purposes. The fact that Satan worshippers have given evil meanings to the star, the broken cross, the goat, the moon, or whatever does not make the symbols inherently evil.
Similarity in symbols does not mean similarity in meaning.
Edit: Symbolism on the outside of the SLC Temple
Angel Moroni Statue
Moroni on top the temple is there to announce that the fullness of the everlasting gospel has been restored to earth.
Spires on Salt Lake Temple
Six Spires, three on each end of the temple, represent the restoration of the priesthood. The three east spires, representing the Melchizedek Priesthood, are six feet higher than the three west spires, representing the Aaronic Priesthood. Also the three east spires represent the First Presidency, and the three west spires the Presiding Bishopric.
Stars outside Temple
Star Stones are found all over the temple, like on keystones above corner tower windows and above the lower set of windows on the walls. They are reminders of the pillars of heaven and the glory of God, and of the telestial kingdom. The stars pointing downward represent the reception of truth from the heavens, and also the priesthood, that the "lost may find themselves," according to Truman O. Angell, temple architect.
Moon Stones on Salt Lake Temple
All 50 moon stones are on the buttresses in line with the top of the first row of oval windows. They illustrate the computation of the earth’s time, and also the terrestrial kingdom.
Sun Stones on Salt Lake Temple
The sun stones also number 50 and are in line with the top of the upper row of oval windows. They also represent the computation of the earth’s time, and in addition, stand for the celestial kingdom.
Saturn Stones on Salt Lake Temple
The Saturn stones are located directly below the parapet on each side of the six towers. They represent Kolob, the dwelling place of God.
Corner Tower Windows on Salt Lake Temple
The five windows on the east end of the building commemorate the five offices of the Melchizedek priesthood: Elder, Seventy, High Priest, Patriarch, and Apostle. The four on the west end of the building stand for the four offices of the Aaronic priesthood: Deacon, Teacher, Priest, and Bishop.
All-Seeing Eye
The all-seeing eye is a symbol of omniscience, omnipresence, and the omnipotent nature of God, is found on the east facade of the central tower, just below the dedicatory inscription.