I went to the Planetarium yesterday. They're presently showing images from the Hubble telescope.
If asked before, what my favorite aspect (view) in the universe was, I'd have said a
Nebula; a cloud of gas where stars are born. But now, my favorite image is definitely a
Planetary Nebula; a dying star.
[edit]: Now looking at them again, I really can't say which one I like best, lol.