Dark Stars and Cosmic Origins: Unraveling the Early Universe
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Dark Stars and Cosmic Origins: Unraveling the Early Universe
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About this listen
Supermassive Dark Stars: A New Cosmic Discovery
Astronomers have identified potential candidates for a new type of star in the early universe, known as supermassive dark stars. Recent observations from the Webb Space Telescope suggest that these stars, primarily composed of hydrogen and helium, are supported against gravitational collapse by dark matter. This episode delves into how these dark stars could help explain the existence of supermassive black holes and the unexpectedly bright distant galaxies observed by Webb. With the possibility of a smoking gun signature in their spectra, the implications of this discovery could reshape our understanding of dark matter and stellar evolution.
Australia's Lunar Rover Mission: A Step Towards the Moon
Work is underway on Australia's first lunar rover, set to launch as part of NASA's Artemis programme. This 20-kilogram robotic vehicle, developed by the Queensland University of Technology, will explore lunar geology and contribute to establishing a sustainable human presence on the Moon. The episode covers the rover's design, mission objectives, and the collaborative efforts between Australian institutions and NASA to advance lunar exploration.
Piecing Together the Early Solar System
New research published in Science Advances reveals that the early solar system was more chaotic than previously thought, with planets forming from recycled fragments of shattered bodies rather than pristine materials. This episode discusses the violent origins of our solar system and how high-energy collisions influenced the development of planetary cores, ultimately shaping the celestial bodies we know today.
www.spacetimewithstuartgary.com
✍️ Episode References
Journal of Physical Review Letters
https://journals.aps.org/prl/
Science Advances
https://www.science.org/journal/sciadv
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Supermassive Dark Stars: A New Cosmic Discovery
Australia's Lunar Rover Mission: A Step Towards the Moon
Piecing Together the Early Solar System
(00:00) The potential discovery of supermassive dark stars
(10:15) Australia's new lunar rover mission details
(18:45) New findings on the chaotic origins of the solar system
(25:30) Skywatch for October: Meteor showers and celestial highlights
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