SpaceTime: Your Guide to Space & Astronomy

Exoplanets Discovered, Kuiper Belt's Icy Trio, and White Holes Explored: S28E35


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SpaceTime Series 28 Episode 35
The Astronomy, Space and Science News Podcast
Discovery of a New Planetary System, Stable Trio of Icy Worlds in the Kuiper Belt, and the Fascinating Concept of White Holes
In this episode of SpaceTime, we delve into the groundbreaking discovery of a nearby planetary system orbiting Barnard's Star, the second closest star system to the Sun. Located just 5.96 light years away, this system comprises four small planets, each 20 to 30% the mass of Earth, revealing new insights into the potential for life beyond our solar system. We discuss the significance of these findings and the advanced techniques used to confirm their existence, including the innovative Maroon X instrument.
Exploring the Kuiper Belt
We also explore the remarkable discovery of a stable trio of small frozen worlds in the Kuiper Belt, cataloged as the Algiera system. This intriguing find, made using data from NASA's Hubble Space Telescope and the Keck Observatory, could potentially be only the second three-body system identified in this remote region, challenging existing theories about how such formations occur.
Theoretical White Holes
Additionally, we dive into the fascinating hypothesis suggesting that black holes may transition into white holes, ejecting matter and energy back into the universe. This revolutionary idea, rooted in quantum mechanics, opens up new possibilities for understanding the nature of black holes and the fundamental workings of the universe.
00:00 Space Time Series 28 Episode 35 for broadcast on 21 March 2025
00:49 Discovery of a planetary system around Barnard's Star
06:30 Significance of the findings and the Maroon X instrument
12:15 Overview of the Algiera system in the Kuiper Belt
18:00 Implications for our understanding of Kuiper Belt objects
22:45 Theoretical concepts of white holes and their significance
27:00 Summary of recent astronomical discoveries
30:15 Discussion on health risks associated with slushy drinks
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✍️ Episode References
Astrophysical Journal Letters
https://iopscience.iop.org/journal/2041-8205
Planetary Science Journal
https://www.springer.com/journal/11038
Physical Review Letters
https://journals.aps.org/prl/
Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
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