Here's why:
* Distance: Stars outside our galaxy are incredibly far away. The light from these stars is incredibly faint and spread out by the time it reaches Earth. Even the powerful Hubble telescope struggles to capture enough light from individual stars at those distances.
* Resolution: Even though Hubble has a high resolution, it's still limited by the physics of light and the size of its mirror. It can resolve objects like galaxies, but it can't distinguish individual stars in distant galaxies.
However, HST can capture images of star clusters and nebulae within our own galaxy. These are groups of stars that are much closer to Earth, allowing Hubble to resolve the individual stars.
What you can find:
* Hubble images of distant galaxies show the overall structure and distribution of stars within these galaxies, but you won't see individual stars.
* Hubble images of star clusters within our galaxy reveal thousands of individual stars clustered together.
* Hubble images of nebulae capture the birth and death of stars within our galaxy.
Future telescopes:
The James Webb Space Telescope (JWST) has a larger mirror and is optimized for infrared light, which can penetrate dust clouds more effectively. It is capable of capturing images of individual stars in nearby galaxies, but even JWST will be limited in the number of stars it can resolve at extreme distances.
