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Pollution on Exoplanets? Using Greenhouse Gases as Signs of Civilization
Manage episode 437920113 series 3561088
محتوای ارائه شده توسط SETI Institute. تمام محتوای پادکست شامل قسمت‌ها، گرافیک‌ها و توضیحات پادکست مستقیماً توسط SETI Institute یا شریک پلتفرم پادکست آن‌ها آپلود و ارائه می‌شوند. اگر فکر می‌کنید شخصی بدون اجازه شما از اثر دارای حق نسخه‌برداری شما استفاده می‌کند، می‌توانید روندی که در اینجا شرح داده شده است را دنبال کنید.https://fa.player.fm/legal
Scientists now can work out what the atmospheres of worlds outside our solar system are made of. Using the James Webb Space Telescope, we have seen water, carbon dioxide, methane, and other gases. Could we, from this distance, know how those gases formed? Possibly. Looking for planets with signs of being intentionally changed - terraforming - would give us proof of an advanced civilization, and a new paper explores just how the investigation process would work. Senior astronomer Franck Marchis talks with authors Edward W. Schwieterman and Daniel Angerhausen about what these gases would be and why they would work as evidence of life. (Recorded 28 August 2024.)
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