Nasa is releasing a steady stream of stunning pictures of the Moon and Earth taken by the astronauts on its Artemis II Moon mission. Attracting millions of likes on social media, the images show the two bodies from unusual angles in glorious high definition. There is no denying the drama: four astronauts are embarking on a mission that will take them further from Earth than any human has ventured since 1972. But is there unique scientific value in these images, or are these simply the