This is a fact!
Allah (SWT) created 3 intelligent beings, Humans, Angels and Jinns. Humans and Jinns have free will whilst Angels do not. Angels are the only creation without free will and they are created to carry out the commands of Allah (SWT), they are يفعلون ما يؤمرون.
Since you guys suspect these 'Aliens' can become technologically advanced, this indicates that they have free will and are intelligent enough to be accountable. Thus prophets would of been sent from amongst them. The Prophet (SAW) would of also been sent to them since he (SAW) was sent to all of creation (including Angels and Jinns).
I believe that Jinns can take the strangest of forms and they are A LOT more technologically advanced than us.
It was probably Jinns who have invented television, mobile phone, etc, based on a story of ibn Taymiyyah (RH) almost 700 years ago!
And the Shaykh ibn Taymiyyah (RH) said:
Shaykh of Islam ibn Taymiyyah said: ‘Some of the Shuyookh who used to keep contact with the Jinn informed him that the Jinn showed them something shining resembling water and glass, it would present an image inside of it for him, for whatever news they requested from him and whatever news he requested from them.’
This was something resembling water and glass, meaning like a television screen for example. Something shining, resembling water and glass. And the device was with him. So when he looked into it he could see what was desired from it. And he said that was also a means for him to relay information to them, meaning to the Jinn.
Besides if 'Aliens' existed and they could be in contact with humans then prophet (SAW) would of probably told us about them.
As for creatures that live in different planets I think they are non other than Jinns. We all know this is possible for them and at great speed!
The Prophet (peace and blessings of Allaah be upon him) explained how the jinn steal this word. He said: “…when our Lord, may His name be blessed and exalted, decrees some matter, the bearers of the Throne glorify Him, then the people of heaven who are closest to them glorify Him, until the tasbeeh reaches the people of the lowest heaven. Then those who are nearest to the bearers of the Throne say: What did your Lord say? And they tell them what He said. And the people of heaven ask one another for the news, until the news reaches the lowest heaven. Then the eavesdropping jinn snatch what they can and convey it to their familiars. What they narrated as they heard it is true, but they add lies to it.” Narrated by Muslim (2229).
