Four Artemis 2 astronauts will spend seven hours flying by the moon today, seeing lunar sights never before seen by human eyes.

As the astronauts of the Artemis mission prepare for their return to Earth, NBC News' Tom Costello, Gadi Schwartz, Liz Kreutz, former NASA astronaut Stephen Robinson and astronomer Dr. Emily Rice walk through what the crew is experiencing in the final hours of the mission and any concerns about the re-entry process.