Sorry for behing too ignorant, but how was recorded sounds on space cause there's no way to reproduce sounds there?

Okay here's some nominations:

Challenger/columbia audio feeds. Absolutely heartbreaking and creepy to listen to knowing what will unfold.

I avoid anything 9/11 related personally but he news from that day definitely qualifies.

In 1961 IIRC two ham radio operators tuned into the Soviet space frequencies and captured a fatally horrific reentry with a female cosmonaut.
Any numbers station

Dial up modems. Freaky as hell, really, just....freaky.

A Geiger counter is creepy and terrifying.

And lastly, any sort of emergency notification system. EAS on V and radio, screw that thing....it's creepy and terrifying even in recorded form

I also got some stuff, to sharebut first my opinion on those recordings
Wow, I am usually someone who isnt scared of those things, but the first recording from the radio station gave ne the creaps, and I hadn't turned my headphones down, so yeah.
Some other creapy stuff is,
Number station, me and a friend tuned in to UVB 76, which is a russian number station sending out messages from time to time, when they dont send, you hear a buzzer in the background, sounding like this.
https://www.youtube.com/watch?v=nCC8Xb7K0c8
you will hear 8 buzzes before the message starts, it is rumored to be a warning system, when the buzzer ends, the russian country is in danger.
This is actually just one rumor, the buzzer changed frequence and pitch a few times.
Also, I have an old german number station from the 19 70's german democratic republic here, u will hear some tones before the words "Achtung, Achtung", will appear, meaning "Atention, Atention"
After that, you will hear groops of 5 numbers each, announced twice, hear you go.
https://www.youtube.com/watch?v=4NgnwCugHsg
those who know the german numbers will notice that some are pronounced differently, that's due to the quality of the station, you had to know which numbers are used, so they used the military pronountiations for some numbers, the 2 and the 5, if you want, I can also tell you how this works if you want to hear it.
Another scary thing are the jericho trumpets, these were small sirens attached to german Stukas, which were planes which would dive down, drop their load and race off again, one beeing the Junkers JU 87 fighter plane. when those planes were coming down, they made an eary sound, which can be described as psychological warfare, these sirens were also attached to bombs when they fall, here is a recording.
https://www.youtube.com/watch?v=73UvmWXZfmA
The recording is from the Wochenschau, which was a weekly news broadcast during the Nazi times.
And for the last one, yeah, germany again.
I guess you all heard some parts of Hitlers speaches where he shouts at his followers. But were you ever wondering how he really sounded? There is actually just one recording available where you can hear him speak normaly, and here it is
https://www.youtube.com/watch?v=XNRTWLXdX3o

Greetings Moritz.

I take my last post back... the dial up modem just got very creepy indeed! Listen to this version of it slowed down by 700%. Right out of the scariest horror film you've ever watched!
https://www.youtube.com/watch?v=IF2v32xCD0Y

Hi
And what do you think about those ones? They really scare.

Hi Assault_Freak.
Wow that was scary. Especially the area 51 thing! The radio broadcast with the chanting and reading of people who died was weird. It reminded me of the papa sangre games lol. I think Jim Jones was the worst of those recordings! He was a monster and a false prophet! I didn't know there was a recording of him at all. I wonder if David Koresh made a recording of himself before he killed everybody in his compound?
The Vietnam recordings I understand. That was a way to defend themselves. So many Americans were brutally killed going into those tunnels they were a terrible place. Something else I remember was the Vietnamese thinking the ace of spades or one of those was bad luck. The U.S. soldiers had an American playing card company print up packs and packs of them and would leave them behind in the tunnels.
I can't think of any creepy recordings off the top of my head right now but I'll try to think of some soon.

Here are a couple of nominations:
the February 20, 1971 emergency broadcast system false activation. In a nut shell, instead of the regularely scheduled EBS test which used to be conducted by the air force each Saturday morning, the teletype operator accidentally picked the wrong tape off the hook (the one for a real national emergency) and set off a nationwide panick.
You can hear two radio announcers dealing with this here:
https://www.youtube.com/watch?v=1B1EAeh6H_I
This probably would have been a lot scarier if heard live during the cold war, but an interesting piece of history nonetheless.
I would also nominate almost any PSA produced by the likes of Australia or New Zealand.
They're probably a lot more frightening if you can see the visuals as well, but still try sleeping after listening to a youtube playlist of 50 of these things late at night. They tend to hold nothing back when it comes to gore and horror.

PSA stands for public service announcements. Drug warnings, traffic light caution warnings, escaped criminals, things like that. And number stations creep me out lots more than hearing Hitler or Jim Jones talking.

Cool cockpit recordings! I don't really see what's so scary about these, though.

You guys made me thinking about myself more deeply. I listened to everything! provided there and nothing even disturbed me. Really.