The first mission to return humans to the lunar neighborhood since Apollo 17 in 1972 is planning spacecraft testing, scientific research, and a glimpse of the dark side of the moon. It’s been more than half a century since astronauts last stepped onto the moon. Now, NASA’s Artemis II will return four humans to its vicinity in a 10-day lunar loop that lifts off from NASA’s Kennedy Space Center as early as February 8. An Orion spacecraft will carry NASA’s Reid Wiseman, Victor Glover, and Christina Koch, as well as Canadian Space Agency astronaut Jeremy Hansen, some 230,000 miles to the far side of the moon—farther from Earth than anyone has traveled. Using a free-return trajectory enabled by lunar gravity, they will slingshot back to Earth for a splashdown off the coast of San Diego.