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NASA’s CHAPEA crew to end 378-day Mars simulation

Four volunteers in NASA’s second Crew Health and Performance Exploration Analog mission are scheduled to leave their habitat on Oct. 31 after 378 days in isolation at Johnson Space Center. The ground-based study simulates aspects of a Mars mission; separate underwater analog crews have also tested research and maintenance activities relevant to future exploration.

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Perseverance measures ultrafine Martian dust that could complicate crewed missions

NASA’s Perseverance rover has detected and measured ultrafine dust particles on Mars, including particles collected on spacesuit materials. The findings sharpen a known human-spaceflight hazard: dust, moved by winds and storms, could expose future crews and equipment to particles small enough to warrant dedicated mitigation.

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Artemis I measurements found lunar radiation higher than in Earth orbit, but less elevated than expected

Radiation measurements aboard the uncrewed Orion spacecraft during NASA’s Artemis I mission found that cosmic radiation near the Moon exceeds levels in Earth orbit, though by less than scientists might have anticipated. The data add to the evidence needed to assess radiation exposure on future crewed lunar missions.

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NASA’s yearlong Mars simulation ends as crew exits habitat; underwater analog tests probe spacewalk safety

Four volunteers who spent more than a year living and working in a simulated Mars mission are due to leave their habitat on Saturday, Oct. Separately, analog astronaut Michaela Musilova led low-visibility underwater “spacewalks” to test astronaut safety and communications protocols—using terrestrial simulations to examine challenges crews may face during space missions.

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