Enlarge / This image taken by NASA's Orion spacecraft shows its view just before the vehicle flew behind the Moon in 2022.NASA Although NASA is unlikely to speak about it publicly any time soon, the space agency is privately considering modifications to its Artemis plan to land astronauts on the surface of the Moon later this decade. Multiple sources have confirmed that NASA is studying alternatives to the planned Artemis III landing of two astronauts on the Moon, nominally scheduled for Septemb...