No, it is not possible to see the entire universe from inside a telescope, regardless of its power. The universe is vast and constantly expanding, and there are physical limitations that prevent us from observing the entire cosmos from a single point.
There are a few reasons why this is the case:
Observable Universe: The observable universe refers to the portion of the universe that we can potentially observe from Earth. It is limited by the speed of light and the age of the universe. Since the universe is about 13.8 billion years old, the observable universe extends up to a distance of about 13.8 billion light-years in all directions. Beyond that distance, light has not had enough time to reach us yet, so we cannot observe those regions.
Expansion of Space: The universe is not only vast but also expanding. This expansion causes distant galaxies to move away from us at speeds greater than the speed of light. As a result, their light will never reach us, no matter how powerful our telescopes are. Therefore, there are regions of the universe that are forever beyond our observational reach.
Inhomogeneity: The universe is not uniformly distributed on large scales. It consists of clusters, superclusters, and cosmic voids, which are unevenly distributed. Even with a powerful telescope, it would not be possible to observe every single object in the universe simultaneously.
While a powerful telescope can allow us to see extremely distant and faint objects, it cannot overcome these fundamental limitations. Our understanding of the universe's vastness and complexity continues to expand as we make observations and gather data from various telescopes and scientific instruments.