There was a related podcast recently somewhere, the idea was that evolutionary lungs come from guts, so maybe guts would still have some ability to absorb oxygen, which, turns out, they indeed do. This could have some practical uses e.g. in intensive care situations where the patient’s lung is useless (extreme COVID), which could give a last resort breathing opportunity while the lungs heal to a usable condition. Furthermore it gives a shitton of opportunity for butt jokes
Just to add, radio telescopes easily have diameters of several 10 to several 100 meters, you won’t put that easily in space. And even if you do, maybe one, not tens of them. And these are often used in network as well for interferometry to have higher spatial resolution, so that would be gone as well.