If you had Hubble eyes...

...the night sky might look something like this:


Sometimes, telescopes focus on tiny, tiny areas of the sky, looking at unimaginably distant objects made small by the intervening space. But the sky is also filled with vast objects and structures that are simply too dim for our unaided eyes to see. "Wide field" telescopes capture the weak rain of photons from these objects, slowly building up an image to light levels our eyes can see.

The clouds in the photo above are nebulae--- huge gatherings and scatterings of interstellar gases. Some nebulae glow on their own, fluorescing in actinic starlight. Some simply reflect normal light. Others are dark, and appear only when backlit. There's a wonderful gallery of nebula images here: http://images.google.com/images?q=nebulae

But what those shots don't do is put the nebulae in the context of the sky as a whole. Some nebulae, as the photo at the top of the page shows, are huge, and would dominate the night sky... if only we had Hubble eyes to see them.