SpaceTime: Your Guide to Space & Astronomy

• Gravity's New Dawn: The Quest for a Unified Theory

  Sponsor Details:This episode is brought to you with the support of Insta360 - the leaders in 360 degree video. To check out the range and grab your special SpaceTime bonus, visit store.insta360.com and use the coupon code SpaceTime at checkout.In this episode of SpaceTime, we delve into groundbreaking advancements in our understanding of gravity, the intriguing thermal characteristics of the Moon, and the discovery of white dwarf pulsars.A New Theory of GravityScientists have proposed a revolutionary new theory of gravity that brings us closer to the long-sought theory of everything. This quantum theory of gravity aims to unify gravity with the fundamental forces of nature, offering potential solutions to some of the most profound questions in physics, including the nature of dark matter and dark energy. We explore the implications of this theory and how it could reshape our understanding of the universe's origins and the behavior of black holes.The Moon's Hot SideRecent findings suggest that the Moon's near side is significantly hotter than its far side, with temperatures reaching up to 170 degrees Celsius higher. This research, based on data from NASA's GRAIL mission, reveals how geological differences between the lunar sides could be attributed to thermal variations in the Moon's mantle. We discuss the potential for these methods to enhance our understanding of other celestial bodies, including Mars and the moons of Jupiter and Saturn.White Dwarf Pulsars: A Stellar DiscoveryAstronomers have made a remarkable discovery of a white dwarf star that emits radio pulses, challenging the notion that only neutron stars can produce such signals. This discovery, reported in Nature Astronomy, opens up new avenues for understanding pulsar mechanisms and their sources across the Milky Way. We examine the significance of this finding and what it means for our knowledge of stellar evolution.www.spacetimewithstuartgary.com✍️ Episode ReferencesReports on Progress in Physicshttps://iopscience.iop.org/journal/0034-4885Naturehttps://www.nature.com/nature/Nature Astronomyhttps://www.nature.com/natureastronomy/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 This is Space Time Series 28, Episode 65 for broadcast on 30 May 202501:00 New theory of gravity12:15 The Moon's thermal characteristics22:30 Discovery of white dwarf pulsars30:00 Skywatch: June night skies and the Taurids meteor shower

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• Jupiter's Gigantic Past

  Sponsor Details:This episode is brought to you with the support of Insta360 - the game changer in 360-degree camera technology. Capture stunning moments with the Insta360 X5, which records 8K 360-degree video. To bag a free invisible selfie stick with your purchase, head to store.insta360.com and use the promo code SpaceTime!In this episode of SpaceTime, we uncover remarkable revelations about Jupiter, lightning-induced gamma rays, and groundbreaking achievements in spaceflight.Jupiter's Magnificent PastA new study reveals that Jupiter, the solar system's largest planet, was once twice its current size and possessed a magnetic field 50 times stronger than today. Researchers, led by Konstantin Batygin, used the orbits of Jupiter's small moons, Amalthea and Thebe, to deduce these findings, providing critical insights into the early stages of planetary formation. The implications of this research could reshape our understanding of gas giants and their formation processes across the universe.Gamma Rays and LightningIn a groundbreaking discovery, scientists have detected intense flashes of gamma rays produced by lightning strikes. This phenomenon, known as terrestrial gamma ray flashes, occurs when lightning accelerates electrons to near light speeds, resulting in bursts of radiation. The study, published in Science Advances, sheds light on the high-energy processes occurring in Earth's atmosphere, enhancing our understanding of lightning's power and its effects on our planet.Precision Formation Flying in SpaceHistory has been made in Earth orbit as two spacecraft from the European Space Agency's Proba 3 mission successfully flew in millimeter-perfect formation for the first time. This precision alignment is crucial for studying the Sun's corona, allowing the two satellites to simulate a single large spacecraft. We discuss the technology behind this mission and its potential to revolutionize solar observations.www.spacetimewithstuartgary.com✍️ Episode ReferencesNature Astronomyhttps://www.nature.com/natureastronomy/Science Advanceshttps://www.science.org/journal/sciadvBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 This is Space Time Series 28, Episode 64 for broadcast on 28 May 202501:00 Jupiter's original size and magnetic field12:15 Gamma ray flashes unleashed by lightning22:30 Precision formation flying in space30:00 Science report: New contact lens technology for night vision

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• The Universe's Surprising Expiration Date

  Sponsor Details:This episode is brought to you with the support of Insta360 - for incredible 360 degree videos you really need to check their cameras out. To see the range and claim your free offer, visit store.insta360.com and use the coupon code SpaceTime at checkout.In this episode of SpaceTime, we explore some mind-bending revelations about the universe, including a new estimate for its ultimate fate, the peculiar gravity of the asteroid Bennu, and India's ambitious plans for its first manned spaceflight.The Universe's Unexpected Expiration DateA groundbreaking study suggests that the universe could meet its end in a mere 10^78 years, significantly sooner than the previously estimated 10^1100 years. This revelation, based on calculations involving Hawking radiation, sheds light on how black holes and other celestial bodies lose mass over time. We discuss the implications of this research and the fascinating mechanics behind black hole evaporation, including the surprising equivalence in decay rates between neutron stars and black holes.Gravity's Quirks on Asteroid BennuAstronomers have uncovered bizarre gravitational dynamics at play on the near-Earth asteroid Bennu, based on data from NASA's Osiris Rex mission. This small celestial body exists in a delicate balance between gravity and centrifugal forces, creating a unique environment that could lead to its eventual disintegration. We delve into how Bennu's increasing rotation might impact its structural integrity and potential future interactions with Earth.India's Manned Spaceflight AmbitionsThe Indian Space Research Organization (ISRO) has announced plans for its first manned spaceflight, set to launch in early 2027. This historic mission will follow an unmanned test flight of the Gaganyan spacecraft, which is designed to carry a crew into low Earth orbit. We discuss the training and preparations of the selected Indian Air Force pilots and the technical challenges ISRO faces as it embarks on this new frontier in space exploration.www.spacetimewithstuartgary.com✍️ Episode ReferencesJournal of Cosmology and Astroparticle Physicshttps://www.cosmos.esa.int/cosmologyNature Astronomyhttps://www.nature.com/natastronomy/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 This is Space Time Series 28, Episode 63 for broadcast on 26 May 202501:00 New estimates on the universe's end12:30 The strange gravity of asteroid Bennu22:45 India's plans for its first manned spaceflight30:00 Science report: Herpes virus linked to Alzheimer's disease

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• Unraveling Dark Matter's Origins, Mars' Stunning Aurora Discovery, and New X-Ray Mysteries

  Sponsor Details:This episode is brought to with the support of NordVPN....the official VPN service of SpaceTime. To check out your special SpaceTime discount with 30 day money back guarantee, visit www.nordvpn.com/stuartgary or use the coupon code STUARTGARY at checkout.This episode of SpaceTime delves into groundbreaking discoveries and theories that reshape our understanding of the universe, including the origins of dark matter, the first visible light auroras on Mars, and new insights into massive X-ray explosions near supermassive black holes.The Birth of Dark Matter ExplainedA new hypothesis suggests that dark matter, which constitutes about 85% of the universe's mass, may have originated from massless particles that condensed as they slowed down. This theory, outlined in the journal Physical Review Letters, proposes that these particles formed during the early universe's chaotic conditions, akin to steam turning into water. We discuss how this model could be tested using existing cosmic microwave background radiation data, potentially revolutionizing our understanding of dark matter's properties and formation.Visible Light Auroras on MarsIn a historic achievement, NASA's Perseverance rover has captured the first visible light auroras on Mars, confirming long-held theories about Martian atmospheric phenomena. This event, triggered by a massive solar flare, opens up new avenues for auroral research and suggests that future astronauts could witness these stunning displays on the Martian surface. We explore the implications of this discovery and how it enhances our understanding of solar interactions with planetary atmospheres.Quasiperiodic Eruptions: A New Type of X-ray ExplosionAstronomers have identified a new type of X-ray outburst known as quasiperiodic eruptions, occurring near supermassive black holes. Observed in a galaxy 300 million light-years away, these eruptions exhibit a unique pattern, with events occurring every 4.5 days. We discuss the mechanisms behind these eruptions and their significance in understanding the dynamics of black holes and their surrounding environments.www.spacetimewithstuartgary.com✍️ Episode ReferencesPhysical Review Lettershttps://journals.aps.org/prl/Science Advanceshttps://www.science.org/journal/sciadvAstrophysical Journalhttps://iopscience.iop.org/journal/0004-637XBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 This is Space Time Series 28, Episode 62 for broadcast on 23 May 202501:00 New theory explaining the birth of dark matter12:15 First visible light auroras detected on Mars20:30 Discovery of quasiperiodic eruptions near supermassive black holes30:00 Science report: AI chatbots exaggerate research summaries

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• Solar Flare Frenzy: Earth's Brush with the Biggest Geomagnetic Storm in 20 Years

  This episode of SpaceTime explores the recent surge in solar activity, including the largest solar flare of the year and the most intense geomagnetic storm in two decades.Massive Solar Flare and Its ImplicationsWe delve into the details of a powerful X 2.7 class solar flare that erupted from a newly active sunspot region, AR14087. Although the flare was not initially directed towards Earth, its rotation has now positioned it directly in our path. We discuss the mechanics of solar flares, their classification, and the potential impacts of such events on our planet, including disruptions to communication systems, satellite operations, and even power grids.The Gannon Storm: A Historic Geomagnetic EventThe episode highlights the Gannon Storm, a severe geomagnetic storm that struck Earth on May 10, 2024. Coinciding with a space weather exercise, this event caused significant disruptions, including high voltage power line failures and rerouted flights due to radiation exposure. We analyze its effects on the atmosphere, satellites, and even the ionosphere, revealing insights into how such storms can impact modern technology.Ancient Solar Storms and Their Modern ImplicationsIn a fascinating segment, we discuss a groundbreaking study that identifies the strongest solar storm ever recorded, dating back to 12350 BCE. This ancient event, significantly more intense than any modern storm, provides invaluable data for understanding solar activity and its potential risks to contemporary infrastructure.Science Robert: Long Work Hours and Brain ChangesWe also touch on a new study revealing how long working hours could alter brain structures, potentially affecting memory and emotional regulation.Join us as we unpack these cosmic phenomena and their implications for life on Earth and beyond.www.spacetimewithstuartgary.com✍️ Episode ReferencesJournal of Occupational Environmental Medicinehttps://journals.lww.com/joem/Pages/default.aspxBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 Solar flares are powerful blasts of energy erupting from sunspots10:30 May 2024 was the biggest geomagnetic storm in over 20 years14:29 New study reveals strongest solar event ever recorded, rewriting science on space weather18:23 A new study claims people who work long hours could have altered brain structures

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