system
Given the following post, respond as if you're commenting on Reddit:
human
Why can Hubble take amazingly high def shots of distant galaxies, but Pluto remains a blur?
gpt
If a galaxy is a billion times as far away as Pluto, but a trillion times as big, it will appear 1000 times larger in the sky. The Andromeda galaxy, for example, is 5.3 billion times as far away from Earth as Pluto is, but is 560 trillion times as wide. That's why it's so much bigger in the sky.

There's also the issue that galaxies emit a lot more light than Pluto emits or reflects, so you have to devote a lot more telescope time to Pluto than to a galaxy to get the same quality image, other factors aside.