Are you fascinated with the universe?  Then head on over to NASA's Astronomy Picture of the Day site (APOD), where, just as its name implies, every day a new photo is posted along with details from professional astronomers.  The photos range from starfields captured by the Hummel lens, to space shuttle liftoffs, to satellite images of Earth, to planets and galaxies ... there's no limit to what you might find!

Make sure you check the archive while you're there, where you'll find every APOD from the past few years.  This is a magnificent site to begin your education in the world of outer space.