The Artemis II crew offically entered a historic communications blackout Monday as their spacecraft slipped behind the Moon's far side, breaking distance records.

“The dark side of the moon”: The term has a poetic ring. It has long been mined in popular culture, not least by Pink Floyd, the English band whose so-named top-selling semi-psychedelic rock album cemented the term in the 1970s.

The moon looks to most amateur photographers like a bright detail on a completely dark background, and it appears to be about half the width if one fingernail on an outstretched hand. That makes it tricky to shoot with an iPhone, as anyone who has ever tried it can attest.

A floating Nutella jar aboard NASA's Artemis II went viral, with internet users calling the zero-gravity moment the greatest free advertisement in history.