We're sunsetting PodQuest on 2025-07-28. Thank you for your support!
Export Podcast Subscriptions
cover of episode TOI-270 d: Unveiling the secrets of a sub-Neptune

TOI-270 d: Unveiling the secrets of a sub-Neptune

2025/5/7
logo of podcast Planetary Radio: Space Exploration, Astronomy and Science

Planetary Radio: Space Exploration, Astronomy and Science
AI Deep Dive Transcript
People
B
Bill Nye
C
Chris Glein
S
Sarah Al-Ahmed
Topics
Sarah Al-Ahmed: 本期节目主要探讨了JWST对次海王星TOI-270d大气层的研究成果以及NASA预算面临的巨大削减。我们采访了行星地球化学家Chris Glein，他详细介绍了其团队对TOI-270d大气成分的分析，并讨论了该行星内部结构的可能性，例如是否存在水或岩浆海洋。此外，我们还采访了行星协会政府关系主任Jack Corelli，他分析了美国总统提出的NASA预算削减方案，并讨论了其对未来太空科学和探索的影响。最后，Bruce Betts为我们带来了本周的天文信息。 Chris Glein: 我们的研究表明，TOI-270d的大气层可能比我们之前预想的要热得多，甚至可能存在全球性的岩浆海洋。这与我们之前对“氢洋世界”的假设相矛盾。我们通过分析大气中不同分子的淬火条件，推断出大气中氮的含量可能非常低，这可能是由于岩浆海洋吸收了大量的氮。此外，我们还利用太阳系中的类比，例如CI球粒陨石和彗星67P，来更好地理解TOI-270d的形成和演化过程。 Jack Corelli: 美国总统提出的NASA预算削减方案是NASA历史上最大的预算削减，其中科学项目资金削减了47%。这将对许多重要的太空任务，例如火星样本返回计划，产生严重的影响。我们正在积极呼吁国会反对这项预算削减方案，并为NASA的科学项目争取更多资金。 Bruce Betts: 本周的天文信息主要关注DART任务撞击Dimorphos小行星后的命名情况，所有新发现的地貌都以打击乐器命名。 supporting_evidences Chris Glein: 'It's a really interesting target. It is one of these sub-Neptunes, and these are mysterious planets to us.' Jack Corelli: 'It proposes a 24.3% cut to NASA overall, including a staggering 47% reduction in its science program funding.' Bruce Betts: 'You remember Dimorphos and Didymos, the thing the DART mission went and slammed into one of them?'

Deep Dive

Shownotes Transcript

TOI-270 d is revealing secrets about the most common type of planet in our galaxy, sub-Neptunes. Sarah Al-Ahmed is joined by planetary geochemist Chris Glein from the Southwest Research Insitute to discuss his team’s new analysis of its atmosphere, using data from JWST and insights from Earth analogs. Then, The Planetary Society’s Director of Government Relations, Jack Kiraly, breaks down the historic budget cuts proposed for NASA in the U.S. President’s “skinny” budget request, including a 47% reduction to its science program funding. We close out with Bruce Betts and What’s Up.

Discover more at: https://www.planetary.org/planetary-radio/2025-toi-270-d)

See omnystudio.com/listener) for privacy information.