Cosmic Fossils: Black Holes Before the Big Bang and Ancient Martian Oceans

SpaceTime Series 29 Episode 47 *Are black holes from before the Big Bang shaping the Universe A new study suggests that ancient black holes from before the big bang may be shaping the universe. The idea is that the cosmos goes through eternal never ending cycles of expanding out from a big bang and then eventually collapsing in a big crunch which triggers another big band and so on. *The bathtub ring hinting at an ancient Martian ocean Scientists have identified geological features on Mars that appear to point to a vast sea shore or coast line stretching around the red planet’s northern hemisphere. *A just award for studying the stars The bi-annual Berenice and Arthur Page Medal winners for excellence in amateur astronomy for 2026 have been presented to Chris Stockdale, Jonathan Bradshaw and Renato Langersek at the Annual National Australian Convention of Amateur Astronomers in Tamworth. *The Science Report Study shows heart risk patterns of obesity differ between men and women. Ancient rock art shows Tasmanian Tigers roamed the main land as recently as 1000 years ago. Claims Australia’s most famous dinosaur – Muttaburrasaurus – might have been a picky eater. Skeptics guide to Russia’s UFO study. Our Guests This Week: Astronomical Society of Australia Page Medal winner Jonathan Bradshaw Purdue University engineer Carolin Frueh And our regular guests: Alex Zaharov-Reutt from techadvice.life Tim Mendham from Australian Skeptics 🌏 Get Our Exclusive NordVPN deal here ➼ . The discounts and bonuses are incredible! And it’s risk-free with Nord’s 30-day money-back guarantee! ✌ If you’d like to support the podcast and gain access to bonus content by becoming a SpaceTime crew member, you can do just that through premium versions on Patreon, Spotify and Apple Podcasts. Details on the Support page on our website For more SpaceTime and show links: If you love this podcast, please get someone else to listen to. Thank you… For more podcasts visit our HQ at

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Cosmic Fossils: Black Holes Before the Big Bang and Ancient Martian Oceans is an episode from SpaceTime with Stuart Gary by Stuart Gary.

This episode is 27:22 long.

This episode was published on Apr 20, 2026.

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