"What did four astronauts see, notice, and document as they traveled around the Moon during NASA's Artemis II mission?" asks a new NASA web page, offering some fascinating pictures and video: Through photographs, spoken observations, drawings, and annotations, the Artemis II crew created a unique scientific record — one that is now available to the science community and the public for further study... As part of the mission science plan, lunar scientists asked the Artemis II crew to watch for tiny flashes sparked by rocky fragments hitting the Moon. Even so, some scientists were astonished when astronauts reported seeing five extremely faint "pinprick" bursts of light from 46,000 miles away. After ruling out other sources — cosmic rays or reflections from the spacecraft — the science team confirmed the sightings... The impact flash observations happened during a planned loss of communications while the Artemis II crew was on the far side of the Moon... Apollo astronauts saw similar flashes from lunar orbit, but the Artemis crew likely caught the faintest ever seen with the unaided eye. From the brightness of the flashes, scientists estimated that incoming rocks were each no more than a couple of inches wide. Despite their size, they were traveling thousands of miles per hour, producing just enough light upon impact to be visible. The nearly hour-long total solar eclipse that the crew experienced while passing by the Moon's far side created ideal dark conditions for spotting such subtle bursts. With no atmosphere to slow or burn up incoming debris, projectiles slam freely into the lunar surface. The crew's direct observations of this process on the Moon's far side provided a rare dataset that will help us understand how often these small impacts occur, which is essential for assessing long-term risks to future lunar habitats and infrastructure... The crew reported seeing subtle hues of gray, black, brown, tan, white, green, and blue across the Moon's surface. This muted rainbow offers clues to the rocks and minerals that make up different lunar regions, helping scientists piece together how the Moon — and, by extension, Earth — evolved over time. "Amazing news," Mission Control responded when they heard about the flashes. Space.com reports that when a Mission Control operator looked over at the Science Evaluation Room, "they were jumping up and down, literally." NASA blogged this week that more than 800 gigabytes of Artemis II lunar science data — some previously unreleased — "have been uploaded to NASA's Planetary Data System, the public archive for NASA's planetary missions." This data release includes more than 11,000 full-resolution images and video of the Moon from the crew's handheld cameras and the Orion spacecraft's cameras, 8.5 hours of audio recordings of the crew's scientific observations of the lunar surface, and crew-annotated images... Along with this data, NASA has released the Artemis II Preliminary Lunar Science Report, the Artemis II Lunar Science Operations Report, and the Artemis II Lunar Science Data User Guide.

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NASA and IBM have released an open-source AI model trained on a large collection of lunar observations to help scientists analyze the Moon at scale. "The NASA-IBM Lunar Foundation Model gives scientists a foundation to explore the Moon at scale, connecting observations across instruments, revealing patterns that are difficult to see in isolation, and providing an open platform the global research community can build on," said IBM director of research for Europe, Juan Bernabe-Moreno. The Register reports: It is claimed as the first AI model to integrate observations captured in a range of modalities (data formats), and at different viewing angles and spatial scales. Instead of sifting through maps and images by hand or using low resolution machine learning models, scientists can use this to analyze geographic features, the pair say. In particular, NASA and IBM hope researchers will be able to discover previously unidentified lunar ice deposits, analyze volcanic features called Irregular Mare Patches, and identify and classify craters. Lunar ice indicates the presence of water and oxygen, which may be useful for future manned missions. It is found in permanently shadowed regions, which are among the most difficult areas to observe. The NASA-IBM model combines multimodal and multi-resolution observations to better predict where ice may be present on the lunar surface. Alongside the model, IBM and NASA scientists compiled an open-source lunar dataset from over 30 spatially-aligned layers, using data from nine instruments across four missions. It combines tens of thousands of images and maps showing various geophysical properties of the lunar surface.

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