Galactic Black Hole Eruptions, Snowball Earth Theories, and the Impact of SkyMapper

SpaceTime Series 29 Episode 59 *Black hole flare explodes in the heart of our galaxy Astronomers have observed a dramatic mid-infrared flare erupting from Sagittarius A*- the supermassive black hole at the centre of our galaxy. *A new explanation for Snowball Earth Scientists have developed a new explanation for one of our planet’s great climate puzzles: how a snowball Earth event known as the Sturtian glaciation could have lasted so long. *The legacy of Australia’s Sky Mapper – so far The fourth and most recent data release by the Sky Mapper southern survey has covered more than half the sky, generating some four hundred thousand images, showing 700 million objects and achieving 15 billion detections. *The Science Report Obesity trends growing faster in low- and middle-income countries compared to high-income nations. The Gulf Stream continuing to weaken, threatening global climates. Palaeontologists discover a new type of plant-eating dinosaur in Southeast Asia. Skeptics guide to pseudo-archaeology. Our Guests This Week: Siding Spring Observatory director Dr. Christian Wolf Alex Mumford local Isle of Rum resident who organized the Dark Skies application And our regular guests: Alex Zaharov-Reutt from techadvice.life Tim Mendham from Australian Skeptics 🌏 Get Our Exclusive NordVPN deal here ➼ www.bitesz.com/nordvpn . The discounts and bonuses are incredible! And it’s risk-free with Nord’s 30-day money-back guarantee! ✌ Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-with-stuart-gary--2458531/support.