Luke 21:25:
And there will be signs in sun and moon and stars, and on the earth distress of nations in perplexity because of the roaring of the sea and the waves
If you are looking for specific Bible verses, like the one above, then websites like www.BibleGateway.com can be very useful. I found the verse above by searching for the words sun, moon, stars, and signs on BibleGateway; the results can be found here.