i remember when they first launched the hubble telescope when i was a kid. here are some photos celebrating the 18th anniversary. see more at: http://www.wired.com/science/space/multimedia/2008/04/gallery_hubble?slide=2&slideView=8
here’s the hubble telescope’s successor:
this is the james webb space telescope. it’s supposed to see much further. notice how the reflex lens is much larger, and uses the hexagonal “beehive” arrangement. learn more here: http://news.bbc.co.uk/2/hi/americas/6645179.stm