The Big Freeze: Exploring Asteroid Impacts and the Mysteries of Uranus and Neptune

SpaceTime Series 29 Episode 80 Did ancient asteroid impacts prevent Earth’s continents from forming A new study suggests the barrage of asteroid impacts that slammed into the ancient Earth during the Hadean Eon between 4.6 and four billion years ago may have prevented the formation of the planet’s first continents. Could the ice giants Uranus and Neptune really be magma worlds A new study suggests that the solar systems two ice giants Uranus and Neptune might actually be magma worlds. World’s biggest atom smasher powers down The world’s most powerful atom smasher has been shut down for a four year major refit. The Science Report Sedentary behaviour linked to a 9% higher risk of death by cancer. Confirmation that mRNA vaccines are safe and highly effective. Artificial night time lighting has made planet Earth 16 percent brighter between 2014 and 2022. Study shows sending an electric current through black coffee can measure its strength and roast. Skeptics guide to AI and misinformation. Our Guests This Week: Professor Tim Johnson from Curtin University   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! ✌   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 The Big Bang editions on Patreon, Spotify and Apple Podcasts. Details on the Support page on our website  https://www.bitesz.com/show/spacetime/support/