Ahead of a lunar flyby on Monday, the crew celebrated the astronaut Jeremy Hansen’s first spaceflight and got a special message from Charlie Duke, the Apollo 16 moonwalker. Early on Monday morning Eastern time, the astronauts of Artemis II will enter the lunar sphere of influence, when the pull of the moon’s gravity becomes stronger than Earth’s. That is when their spacecraft will start speeding up for the main event of... [1307 chars]