Question -Does the Quran make reference to the existence of extraterrestrial life forms/aliens ?
Answer
There is no consensus among scholars that reference is made to extraterrestrial life-forms/aliens in the Quran. Ibn Taymiyyah was one of the scholars who suggested Allah SWT creates perpetually. He is a proponent of the view that we are not alone and there are other creations of Allah SWT. We are but one of Allah SWT infinite creations. See the article “PERPETUAL CREATIVITY IN THE PERFECTION OF GOD: IBN TAYMIYYA’S HADITH COMMENTARY ON GOD’S CREATION OF THIS WORLD” by JON HOOVER
Scientists have not discovered any extraterrestrial life-forms/aliens and no consensus exists among them as well.
Those islamic scholars that are proponents of the view that there are extraterrestrial life forms/aliens in the universe cite the following verses
Quran – Surah Fatehah
ٱلْحَمْدُ لِلَّهِ رَبِّ ٱلْعَـٰلَمِينَ
All praise is for Allah—Lord of all worlds,
The word “worlds” may imply other creations of Allah SWT on other planets
Quran 42 29
وَمِنْ ءَايَـٰتِهِۦ خَلْقُ ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضِ وَمَا بَثَّ فِيهِمَا مِن دَآبَّةٍۢ ۚ وَهُوَ عَلَىٰ جَمْعِهِمْ إِذَا يَشَآءُ قَدِيرٌۭ ٢٩
Among His signs is the creation of the heavens and the earth and the creatures He has spread in them. He is Powerful to assemble them whenever He so wills.
There are multiple creations of Allah SWT and He has spread them throughout the universe. He is able to allow them to meet whenever He wills ie. Meeting with other life forms is possible
Quran 17 70
وَلَقَدْ كَرَّمْنَا بَنِىٓ ءَادَمَ وَحَمَلْنَـٰهُمْ فِى ٱلْبَرِّ وَٱلْبَحْرِ وَرَزَقْنَـٰهُم مِّنَ ٱلطَّيِّبَـٰتِ وَفَضَّلْنَـٰهُمْ عَلَىٰ كَثِيرٍۢ مِّمَّنْ خَلَقْنَا تَفْضِيلًۭا
And We have certainly honored the children of Adam and carried them on the land and sea and provided for them of the good things and preferred them over much of what We have created, with [definite] preference.
Human beings have been favored above many of Allah SWT creations but NOT ALL of them. There are some of the creations of Allah SWT that are favored above human beings.
Allah SWT knows best