Artemis II is not a lunar landing mission , so “missing the Moon” would usually mean the spacecraft’s trajectory didn’t line up as intended, not that it failed to land on the surface. The mission is designed to go around the Moon and then return to Earth, and NASA has multiple abort and return options built into the flight plan.

What would happen

If the spacecraft’s lunar flyby were off, NASA would focus on getting the crew home safely. Depending on when the problem happened, the crew could use an abort mode during launch, an early return burn, or a free-return style path that uses the Moon’s gravity to bring Orion back toward Earth.

If it “misses” the Moon

A true miss would most likely mean Orion stays in a high Earth orbit or follows a trajectory that still brings it back later, rather than vanishing into deep space. Artemis II is planned so the spacecraft still has a path home, and public explanations of the mission describe the Moon flyby as part of the return setup, not a one-way trip.

What NASA would prioritize

The priority would be:

  1. Keep the crew safe.
  2. Preserve communications and life support.
  3. Use the safest return trajectory available.
  4. Recover the capsule with splashdown teams on Earth.

Bottom line

If Artemis II “misses the Moon,” it would be a mission anomaly, but not automatically a disaster. The main job of the mission is to prove Orion can safely carry astronauts out past Earth orbit and bring them back.

If you want, I can also turn this into a shorter Quick Scoop version or a more technical explanation of the abort paths.