When night covered him he saw a star and said, ‘This is my Lord!’ Then when it set he said, “I do not love what sets.” (Sura An’am, 76)
The letters that make up the word "Halley" appear for the first time in the Qur’an in this verse. Furthermore, the reference to a “setting” star is highly significant. What is more, the Arabic word “kawkaban,” meaning “star,” appears right next to the letters comprising “Halley.”
76, the number of the related verse, on the other hand, may indicate 76 years, which is Halley’s orbital period. (Allah knows the truth.) The verse number 76 represents the Halley comet; because Halley becomes visible from the Earth every 76 years. That is to say, its orbital period is 76. For this reason, that Halley is mentioned for the first time in the Qur’an in the 76th verse is a miracle of Allah.