Eli5: is it possible to know if there are galaxies hidden behind galaxies closer to us? And if yes, can we look at them with current technologies?
In: Planetary Science
We actually cannot even see the other side of the Milky Way very well. We somewhat extrapolate there to get the shape as the many stars and clouds near the center blocks the view in a huge part of the spectrum.
In particular: yes. With the galaxy close to us being the Milky Way itself even.
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