Cosmic Clues Beneath Us: The Mantle's Role In Life And The Milky Way Unveiled SpaceTime With Stuart Gary podcast

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Cosmic Clues Beneath Us: The Mantle's Role in Life and the Milky Way Unveiled

23h ago 20:12

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(00:00:00) Cosmic Clues Beneath Us: The Mantle's Role in Life and the Milky Way Unveiled
(00:00:47) Mysterious structures within Earth's mantle may hold clues to life
(00:05:05) A new unprecedented view of the Milky Way Galaxy
(00:12:36) Stranded Chinese taikonauts return safely to Earth
(00:14:21) The Science Report
(00:16:58) Skeptics guide to the return of the haunted doll.
In this episode of SpaceTime, we uncover groundbreaking insights into Earth's mysteries and the cosmos beyond.
Mysterious Structures in Earth's Mantle
A new study reveals that enigmatic structures within Earth's mantle may hold vital clues about why our planet evolved the conditions necessary for life. These massive formations, known as large low shear velocity provinces and ultra low velocity zones, reside at the boundary between the mantle and outer core, approximately 2,900 kilometres beneath the surface. The research suggests these anomalies could be remnants of Earth's formative processes, providing a deeper understanding of how elements from the core influenced the planet's cooling, volcanic activity, and atmospheric evolution, ultimately setting Earth apart from Venus and Mars.
Unprecedented View of the Milky Way
Astronomers have achieved a remarkable new perspective of our home galaxy, the Milky Way, with the largest low-frequency radio image ever assembled. This extensive survey, conducted using the Murchison Wide Field Array radio telescope in Western Australia, captures the intricate birth, evolution, and demise of stars across the southern hemisphere. The new image, which boasts double the resolution and tenfold sensitivity compared to previous observations, offers valuable insights into stellar interactions and the cosmic landscape, revealing patterns in star formation and supernova remnants.
Successful Return of Stranded Taikonauts
In a significant development, the three Chinese taikonauts stranded in orbit after their Shenzhou 20 spacecraft was struck by space debris have safely returned to Earth aboard the Shenzhou 21 capsule. The crew's return marks the end of a six-month mission at the Tiangong space station, with their extended stay setting a new record for the longest duration in space for Chinese astronauts. The episode highlights the challenges of space travel and the rapid response by Beijing to ensure crew safety.
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✍️ Episode References
Nature Geoscience
Publications of the Astronomical Society of Australia
New England Journal of Medicine
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