Today, a very important announcement was made by NASA. They will be sending up a space shuttle mission to complete needed repairs to the Hubble Space telescope that will allow it to stay in operation through the end of the decade. The Hubble telescope has provided amazing views of galaxies and planets that have never been seen with the detail that the Hubble telescope allows. New findings about galaxy and star formation have been furthered through the use of this telescope. It's an amazing piece of technology and will now be useful through 2010 when a new telescope will be put into orbit to replace Hubble. At that point, Hubble will burn up as it plunges out of orbit through Earth's atmosphere.
Here's a site where you can see some of the great pictures that Hubble is able to take. They also have a wallpaper section where you can put some of the galaxy pictures right on the desktop of your computer.
Hubble Pictures