Clearly the most iconic image of space for most of us is the "Pale Blue Dot" taken by the Appolo astronauts back sixty's or so. The beautiful blue earth in its entirety poised in its rightful place against the beek black vacuum of space. The photo has been "updated" several times by subsequent spacecraft; but, none hold the relevance to an entire generations' neural pathways as does the original which we saw taken live in the wee hours of the morning.
Many other space related icons clutter the minds now of the "internet generation" not the least of which is the ubiquitous "Google Earth" planet with its day and night terminus marching across the globe. "Terminus," now that's a word that none but scientists knew until Google. The demarcation on a map or globe representing the current position of the sun's shadow – the end of daylight… the beginning of the dark… the night.
