How do we know what our galaxy looks like when the furthest we can see os pluto

Pluto is NOT the farthest we can see. Wherever did you get that idea? We can see billions of light years beyond Pluto: I've done so with my own eyes, with the help of a telescope.

The location and distance of the centre of the Milky Way was determined by Harlow Shapley in the 1920s using the distribution of globular clusters. It has since been refined using radio astronomy so that we not only know where the centre is, but have also traced the spiral arms.

My guess is, the telescopes that are used, capture light that is seen in the nights sky. the light shows an image from the density of the light, meaning, if the light changes colour as it spreads out. just like if you look at a light bulb from one foot away up to 20 feet away, you will see the light spread out more depending on how big the room is, so, when you walk close to the light, the light is brighter as you get near the source, well, a telescope can measure what is up there in light, and record it so we can make a map and get images.

The furthest we can see is about 13.7 billion lightyears, a trillion times further than Pluto.

In the infrared, we can see stars orbiting the giant black hole in the galactic center.

With the naked eye you can see the Andromeda Galaxy, 2.5 million light years from earth.

With a telescope you can see the structure of all the galaxies, so one would assume ours looks the same.

Hydrogen generates a radio signal of 21 centimeters... radio telescopes have plotted the most intense concentrations of hydrogen - and it's essentially 'draws' the milkyway.

Satellites and radiotelescopes can help us see outside of our solar system.

We can see way past Pluto buddy

build your own space ship and find out.

keep asking questions like that and youll see most aspects of science are based on guesses and opinions pretty much rendering it bullspit