You can't do better than Hubblesite! You could spend years just exploring on this huge site. There are podcasts, photos, videos, tons of science information, and all of the Hubble Space Telescope press releases from the very beginning. The photos from the Hubble Space Telescope are free for you to use. You can print them, save them to your computer, or use them in any number of creative ways. The notice is on the site. Spectacular!