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August 18, 2025 24 mins

In this episode of SpaceTime , we uncover the latest astronomical marvels and pressing concerns in space science.

The Cosmic Horseshoe: A Supermassive Discovery

Astronomers have potentially identified the most massive supermassive black hole ever discovered, dubbed the Cosmic Horseshoe, which is estimated to be around 36 billion times the mass of our Sun. Located approximately 5 billion light years away, this colossal black hole distorts space-time and creates a stunning Einstein ring effect by gravitationally lensing light from distant galaxies. The measurement of its mass combines gravitational lensing and stellar kinematics, providing a rare glimpse into the formation and evolution of galaxies and their central black holes.

Possible New Planet in the Alpha Centauri System

Exciting news emerges from the Alpha Centauri star system, where astronomers may have discovered a new planet orbiting Alpha Centauri A, the closest star system to our own at just 4.25 light years away. Using data from NASA's Webb Space Telescope, researchers suggest this Saturn-sized gas giant could be located in the habitable zone of a sun-like star. While the planet's gaseous nature may not support life, its proximity offers a unique opportunity to study planetary systems beyond our own, challenging existing theories on planet formation in binary star systems.

The Satellite Proliferation Dilemma

As the number of satellites in Earth orbit continues to rise, astronomers are sounding alarms over the interference these satellites cause to vital scientific research. A study has highlighted the impact of Starlink's megaconstellation on radio astronomy, with significant radio emissions masking faint signals from the universe. This growing concern emphasizes the need for regulatory measures to mitigate interference and protect the integrity of astronomical observations.

www.spacetimewithstuartgary.com (https://www.spacetimewithstuartgary.com/)

✍️ Episode References

Monthly Notices of the Royal Astronomical Society

https://academic.oup.com/mnras (https://academic.oup.com/mnras)

Astrophysical Journal Letters

https://iopscience.iop.org/journal/2041-8205 (https://iopscience.iop.org/journal/2041-8205)

Astronomy and Astrophysics Journal

https://www.aanda.org/ (https://www.aanda.org/)

Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support (https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support?utm_source=rss&utm_medium=rss&utm_campaign=rss) .

Episode link: https://play.headliner.app/episode/28605292?utm_source=youtube

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