Interstellar comet reveals frigid birthplace & Mars simulation crew returns home - Space News (Nov 2, 2026)

Support The Automated Daily directly: 15 free episodes a day, 5 editions, 3 languages, about $4 a day to produce. A coffee keeps it going: theautomateddaily.com/support Please support this podcast by checking out our sponsors: - SurveyMonkey, Using AI to surface insights faster and reduce manual analysis time - https://get.surveymonkey.com/tad - Lindy is your ultimate AI assistant that proactively manages your inbox - https://try.lindy.ai/tad - Invest Like the Pros with StockMVP - https://www.stock-mvp.com/?via=ron Today's topics: Interstellar comet reveals frigid birthplace - James Webb observations found exceptionally high levels of heavy hydrogen in the methane of interstellar comet 3I/ATLAS. The chemical signature suggests its ice formed in an intensely cold interstellar cloud or around a young star beyond our Solar System. Mars simulation crew returns home - Four volunteers emerged from NASA's CHAPEA habitat after spending 378 days in a simulated Mars mission. The isolation study examined communication delays, crop growing, crew health and the human challenges of long-duration exploration. Martian polar ice changes locally - Researchers studying three dozen craters near Mars's north pole found that most experienced changing ice deposits. The uneven behavior points to local topography and microclimates rather than one uniform process across the polar cap. Europe seeks new space partners - The European Space Agency is exploring closer cooperation with the United Arab Emirates as Europe works toward greater independence in space. Possible projects include lunar exploration and future Emirati astronaut participation in European missions. Episode Transcript Interstellar comet reveals frigid birthplace We begin with interstellar comet 3I/ATLAS, which has delivered an unusually clear clue about its distant origins. Using the James Webb Space Telescope, astronomers studied methane escaping from the comet and found that it contains an exceptional amount of deuterium, a heavier form of hydrogen. The measurement is far above comparable values found in Solar System comets. That points toward the comet's ice forming in an extremely cold environment, possibly inside the dense cloud that existed before its original star formed, or in the frozen outer region surrounding a very young star. This matters because 3I/ATLAS did not originate in our Solar System. It is material from another planetary neighborhood, preserved during a journey through interstellar space. Scientists usually study distant star systems through light collected across many light-years. Here, a small piece of another system has effectively come to us. The result does not identify the comet's home star, and several possible birth environments remain. But it gives researchers a rare chemical sample of conditions beyond the Solar System. Every new measurement of an interstellar object helps reveal whether our comets are typical or merely one local variation in a much wider cosmic population. Mars simulation crew returns home Back on Earth, four volunteers have stepped outside after spending 378 days inside NASA's simulated Mars habitat in Houston. Ross Elder, Ellen Ellis, Matthew Montgomery and James Spicer entered the sealed, 3D-printed facility in Oct