Get lost in the NASA Image Archive. You can spend hours viewing the images on this site.
“NASA Images is a service of Internet Archive ( www.archive.org ), a non-profit library, to offer public access to NASA’s images, videos and audio collections. NASA Images is constantly growing with the addition of current media from NASA as well as newly digitized media from the archives of the NASA Centers.
The goal of NASA Images is to increase our understanding of the earth, our solar system and the universe beyond in order to benefit humanity.” Quoted frrom NASA Images.