If they are tidally locked, there won't be any tidal friction, would there?

Yep, Named after the Roche limit.

Yes, but you may run into problems related to tidal heating

Isn't Theia hypothesized to either have formed or migrated into Earth-Sun L4 or L5 point and then had to be gravitationally nudged out of there by Jupiter and / or Venus?

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Oh for sure they would, but it would just slowly influence it a tiny bit over huge time spans(unless it is jupiter size and closer to earth than mars or venus). The star is going to be a much more powerful pull than even that would be.

Hahaha maybe one of the planets woulf eventually find a home as a moon of it though

Yes but they would know each others existence through gravitational influences. For example a comet hurtling through the solar system would be influenced by its mass, and we would know it’s there, then of course space age we could just check it out

This mission will see the ClearSpace use a spacecraft with four articulated arms to de-orbit part of a Vega rocket from low Earth orbit (LEO).

“ClearSpace-1 is baselined to be launched on a Vega-C launcher,” Piguet told SpaceNews.

What would be the point? Data collection and image processing takes a loooooooong time. Scientific telescopes aren't "tape a camera to one end and take a snapshot".

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Upside Down was soooo good 🐝

I suggest you to read this article. Use the Google translation if you may the results are pretty accurate.

Of course, Buran never have the privilege to be flown more times to test It, but the engineering decisions were safer.

And to add to this. Let's say we remove the thinning atmosphere issue cause the less medium issue is exactly light why we can't hear anything in space. So sound travels as far as it's gonna go no matter what or how much it's going thru.

Sound doesn't just go forever like light does. It has a finite distance before it's undetectable. So with the thin atmosphere and space issues removed, would you say hear rush hour in LA from space? No you wouldn't. Could you hear Krakatoa erupt? Maybe, but surely not beyond the moon and I think that's being generous.

But I think the biggest thing here, in my scenario we wouldn't hear a GODDAMN THING ON EARTH! The sun would be so loud it would be the only thing we would ever hear. In fact if this was the case life most likely wouldn't have evolved hearing cause what's the point.

Yes, and if whatever noise the earth produces isn't audible at ground level there is no reason it'd become so once in space

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Depends on the frequency, no?

Probably the sound of millions of cows farting.

Other planets in the solar system would likely perturb their orbits, too.

So I think the real question your asking here is if sound could make it all the way to the top of our atmosphere? If space suddenly had the ability to transmit sound, that sound would first have to travel through our atmosphere to reach space, or the atmosphere itself would need to make sound to transmit to space.

Assuming the atmosphere still thins with altitude before it reaches “magical sound transmitting space,” then the atmosphere itself won’t be able to carry sound that high. At a certain point, the air will be so thin that sound just won’t be transmitted through it effectively, and even though sound can travel through it, it won’t travel very far. By the same logic, that thin outer boundary of atmosphere won’t be able to efficiently transmit sound into magical sound space.

You could imagine that the atmosphere itself would make noise to. Wind and atmospheric phenomena all over the earth would make a ton of noise. But again, the thinning of the atmosphere would largely contain this to earth.

Basically, sound would travel far for the same reason it doesn’t travel at all in a vacuum, there isn’t enough (or any) physical medium to put that sound out into space at the edge of our atmosphere.

Sound of every radio station all at the same time.

If it did it would be about as loud as the quietest place on earth. Increasing the distance and going to space would only decrease the volume. That being said, if sound did travel through space you wouldn't be able to hear much over the deafening sound of the sun.

Earth has some of the best drone metal sounds I’ve heard

You'd think you'd hear that from earth wouldn't you...

In theory, yes. We have discovered from binary asteroids to binary stars so binary planets are physically possible. However; if the separation between them is too close tidal friction could become an issue, making them lose momentum over time resulting collision between the two.

Astrophysicists will take any frequency in the full EM spectrum (which includes radio and infrared and visible light and ultraviolet and microwave and X-ray and…) and remap it to an audio spectrum. If that’s what you mean. Mostly it’s white noise.