<p>On their mission around the moon, Jeremy Hansen and his crewmates will become the only four people on Earth to ever lay eyes on the entire far side of the moon. Since joining the space program, the Artemis astronauts have been undergoing intensive geological training to help train their eyes to look for lunar features that satellites can't pick up.&nbsp;</p><p><br></p><p>PLUS:</p><p><br></p><ul><li>How Neanderthals skillfully hunted and butchered a giant elephant</li><li>Filming fish over their lifetime reveals behaviours that lead to longevity</li><li>How our food environment shapes our tastes — and health</li></ul>