Size of the Universe, what we can see.

Question

I have some question about the size of the universe and how we know what is on it.

This picture for reference.

https://puu.sh/EJ6ow/ff5a7c4780.png

I read that our radio signal is a “small square” in the milky way galaxy, so how we know what is beyond that?

how we know what is in the Virgo Superclusters for example?

Does the hubble telescope can actually see past the milky way galaxy into the superclusters?

In: Physics

Answer 1

Yes, we have only been putting signals *out* for about 100 years. The important thing, though, is the light coming toward us. It has been coming toward us for billions of years, and that’s the light we see when we look far out into space.

Answer 2

Here is one piece of information to get you started. The Hubble Deep Field wiki.

https://en.m.wikipedia.org/wiki/Hubble_Deep_Field

Also a good video about it:

Answer 3

The Visible Universe is smaller than the Universe. The Universe might be infinite.