For this post, I’m going to do something slightly different. I’m going to dedicate the majority of the text to an excellent quote by Carl Sagan, one of the most inspiring science writers of the 20th century. It’s a quote I feel every human being should read. It’ll need a short introduction.
In 1977, Nasa launched the Voyager 1 probe with the aim of exploring the distant gas giants of the solar system. Although the mission officially ended as it left Saturn in 1980, the probe continued to function. In 1990, at Carl’s behest, Nasa commanded the probe to turn around and take a photomontage of our entire Solar System. On seeing the photograph of the Earth (below) captured at a distance of six billion kilometres, Carl Sagan remarked:
The Universal Blog 