Many say that for those of us around at the time, the first view of earth against the blank blackness of space was a game changer. It is arguably the most important world-wide photo ever taken. I would agree. It was a humbling experience. And we have only continued to see more through these past 44 years.
NPR's Science Friday posted a video last week about the pictures of our "Blue Marble" earth. It is a brief history from "Earthrise" and Apollo 8; Blue Marble; Pale Blue Dot; and now Blue Marble 2.0 and even 3.0.
Live Science has more on the latest on their site. (Link.)