Astronomy
The Bible condemns astrology, but condones astronomy. Astrology is based on self, whereas astronomy is based on God.
Genesis 1:14 "And God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years:"
Isaiah 5:30 "And in that day they shall roar against them like the roaring of the sea: and if one look unto the land, behold darkness and sorrow, and the light is darkened in the heavens thereof."
Isaiah 13:10 "For the stars of heaven and the constellations thereof shall not give their light: the sun shall be darkened in his going forth, and the moon shall not cause her light to shine."
Joel 2:30-31 "And I will shew wonders in the heavens and in the earth, blood, and fire, and pillars of smoke. The sun shall be turned into darkness, and the moon into blood, before the great and the terrible day of the LORD come."
Joel 3:14-16 "Multitudes, multitudes in the valley of decision: for the day of the LORD is near in the valley of decision. The sun and the moon shall be darkened, and the stars shall withdraw their shining. The LORD also shall roar out of Zion, and utter his voice from Jerusalem; and the heavens and the earth shall shake: but the LORD will be the hope of his people, and the strength of the children of Israel."
Amos 8:9 "And it shall come to pass in that day, saith the Lord GOD, that I will cause the sun to go down at noon, and I will darken the earth in the clear day:"
Matthew 2:2 "Saying, Where is he that is born King of the Jews? for we have seen his star [Numbers 24:17] in the east, and are come to worship him."
Luke 21:25 "And there shall be signs in the sun, and in the moon, and in the stars; and upon the earth distress of nations, with perplexity; the sea and the waves roaring; "
Acts 2:19 "And I will shew wonders in heaven above, and signs in the earth beneath; blood, and fire, and vapour of smoke:"Revelation 8:12 "And the fourth angel sounded, and the third part of the sun was smitten, and the third part of the moon, and the third part of the stars; so as the third part of them was darkened, and the day shone not for a third part of it, and the night likewise."
We are to look to the heavens to see the events of heaven, the Lord placed them there for us to see and know what is coming.
Deuteronomy 4:19 "And lest thou lift up thine eyes unto heaven, and when thou seest the sun, and the moon, and the stars, even all the host of heaven, shouldest be driven to worship them, and serve them, which the LORD thy God hath divided unto all nations under the whole heaven."
Job 31:26-28 "If I beheld the sun when it shined, or the moon walking in brightness; And my heart hath been secretly enticed, or my mouth hath kissed my hand: This also were an iniquity to be punished by the judge: for I should have denied the God that is above."
The verses above would be considered astrology.