Discovery of a White Dwarf so Massive it Might Collapse

The Astronomy, Technology, and Space Science News Podcast.SpaceTime Series 24 Episode 79*Discovery of a White Dwarf so massive it might collapseAstronomers have discovered the most massive white dwarf ever seen. The smouldering cinder, which formed when two smaller white dwarfs merged, is packing a mass greater than that of our Sun squeezed into an object about the size of our Moon.*A new hypothesis to explain Mercury’s huge iron coreA new study claims that rather than being the result of a massive collision blasting away much of its mantle – Mercury’s proportionally massive core is simply the result of where the planet formed.*Planet Earth’s hot new neighbourAstronomers have discovered a new exoplanet in our part of the galactic neighbourhood.*A final mission for the Cygnus 15 cargo shipA Cygnus cargo ship has undocked from the International Space Station to launch a series of five satellites before ending its mission.*The Science ReportA new study shows people will need to vaccinate to at least 85% to achieve herd immunity.Night-owls have an increasing risk of obesity.Australia’s oddest and most critically endangered species of fungus.China is continuing its preparations for war -- building over a hundred new nuclear missile silos.Skeptic's guide to the Falcon Lake UFO incident.For more SpaceTime and show links: https://linktr.ee/biteszHQBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-with-stuart-gary--2458531/support.