posted on Feb, 27 2013 @ 08:24 AM
reply to post by hp1229
As wmd_2008 said, it comes down to a telescope's resolution ability.
That ability is very dependent upon the optics of the telescope, of which, most high resolution telescopes use a primary mirror and it's diameter
directly determines it's resolution.
The other factors involved are: Size of the object you're looking at and the Distance to the object.
Hubble can give us the amazing details that we see of a far away nebula because of the size of the nebula. The nebula might be many light years
away....but it's size is also measured in light years.
For example: Hubble can show you a galaxy in amazing detail......but it's not going to be able to show you any nebula in that galaxy in the same
detail because they are much smaller than the galaxy itself (and further away).
The LROC in orbit around our moon gives us outstanding resolution....but that is because it's very close, right over head of the moon's surface.
That means it can show you a boulder that is only a few meters in diameter.
But Hubble, while it has a large primary mirror, is a quarter of a million miles away from that same boulder an it simply can't resolve detail that
In order to have the same resolution power as the LROC, Hubble or a telescope here on Earth would have to have a primary mirror bigger than a whole
So keep that in mind: Hubble sees things in detail that are much farther away than our moon....but those things it is showing you are much, much
bigger than our entire solar system.