06 | Artemis Explained: Moon joy

April 6, 2026·15 min·1 clip

On the eve of the lunar flyby, Artemis astronauts enter the moon's gravitational clutches, poised to make history.

The episode opens with host Belinda Smith describing the tangible excitement the Artemis 2 crew is experiencing as they enter the moon's gravitational sphere of influence. Jacinta Bowler delivers the daily Mission Under a Minute, covering suit checks, the mysterious toilet smell, and the crew's improvised Easter egg hunt using dehydrated scrambled eggs. The hosts explain the flyby timeline in precise detail: the crew passes the Apollo 13 distance record at around 4 a.m. AEST, the flyby begins at 4:45 a.m. AEST, closest approach is at 9 a.m. AEST, and the observation period ends at 11:20 a.m. AEST. NASA is providing multiple live feeds including views from outside the capsule, the moon surface, and the astronauts themselves, though the cabin lights will be dimmed to improve moon visibility. A communications blackout lasting approximately 41 minutes begins at 8:44 a.m. AEST when the moon passes between Orion and Earth. The Australian National University's ground receiver is also being brought into use for overnight data collection. Dr. Kelsey Young, NASA's lead for Lunar Science Objectives, is described as the scientist of the hour, overseeing a structured observation plan in which one astronaut photographs targets while another takes visual notes, switching halfway through. The crew will observe nine potential South Pole landing sites, chosen in part because subsurface ice deposits there could make future missions significantly more viable. The episode ends the flyby description by noting the astronauts will observe a solar eclipse from their perspective as the sun passes behind the moon near the end of the session. Listener Frank's question about the full moon timing is answered: the launch was scheduled so that the far side of the moon would be illuminated by a waning gibbous moon on arrival, providing better viewing conditions. The concept of the lunar sphere of influence is explained as the point at which lunar gravity exceeds Earth's gravity on the spacecraft. A listener question from Eris, aged 45, prompts a clear explanation that the spacecraft's speed is precisely calibrated to execute a U-turn around the moon — too fast and it would overshoot, too slow and it would be captured in orbit. Questions from Olivia, Craig, and Sergey about space junk lead to an explanation of the U.S. Space Surveillance Network and how launch windows are chosen to avoid tracked debris. Jacinta notes that with over 10,000 Starlink satellites already launched, future lunar launch windows may become shorter. Nina's question about cabin smells prompts a discussion of filtration systems, oxygen and nitrogen tanks, and the fact that reduced gravity partially blocks sinuses, limiting how strongly astronauts can smell. The mystery toilet smell — described as similar to an unused electric heater switching on — is confirmed by Mission Control to not be mission-threatening, with Flight Director Rick Henfling stating the mission is proceeding. The hosts conclude by connecting this to the purpose of the test mission: identifying minor issues so they can be resolved before longer crewed missions to the moon or Mars.

As heard by us

A calm, grounded update on Artemis 2 as the moon starts to pull the mission in.

Artemis Explained follows the eve of the lunar flyby with a calm, easy pace. Jacinta Bowler and Belinda Smith cover the suit checks, the strange smell, Orion slipping into the moon's pull, and the eclipse the astronauts should catch near the end.

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Why you'd press play

You want a moon-flyby update while Artemis 2 is on the clock.

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