SpaceTime with Stuart Gary

This episode of SpaceTime is brought to you with the support of Incognai - when your online privacy matters, Incogni's the service you need. Check out our special discount deal by visiting www.incogni.com/stuartgaryIn this episode of SpaceTime, we delve into groundbreaking discoveries that reveal the impact of human activity on Earth, explore a new celestial body beyond Pluto, and prepare for Japan's upcoming Martian moon mission.Human Development and Earth's Polar ShiftA recent study published in Geophysical Research Letters has confirmed that human development has caused a significant shift in Earth's spin axis. By constructing nearly 7,000 dams between 1835 and 2011, humans have redistributed the planet's mass, resulting in a total pole shift of about 1.13 meters. Lead author Natasha Valencic explains how this shift not only affects Earth's rotation but also contributes to a global drop in sea levels. The findings underscore the importance of considering water impoundment in future sea level rise calculations.Discovery of a World Beyond PlutoAstronomers have identified a small celestial object, designated 2023 KQ14, located beyond Pluto, potentially challenging the existence of the elusive Planet Nine. This discovery, detailed in Nature Astronomy, suggests that the outer solar system is more diverse than previously thought. With a stable orbit for over 4.5 billion years, 2023 KQ14's peculiar trajectory raises questions about the formation and evolution of distant solar system bodies, as well as the dynamics of gravitational influences in this remote region.Japan's Martian Moon Sample Return MissionJapan's aerospace exploration agency JAXA is set to launch the Martian Moons Exploration Mission (MMX) in 2026. This ambitious mission aims to land on Phobos, collect samples, and return them to Earth by 2031. The spacecraft will also conduct a flyby of Deimos while gathering crucial data to determine the origins of Mars' moons. With advanced scientific instruments onboard, the mission seeks to unravel the mysteries surrounding these small, potato-shaped moons and their relationship to the Red Planet's history.www.spacetimewithstuartgary.com✍️ Episode ReferencesGeophysical Research Lettershttps://agupubs.onlinelibrary.wiley.com/journal/19448007Nature Astronomyhttps://www.nature.com/natureastronomy/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.

In this episode of SpaceTime, we tackle some of the most profound questions in science, including the mystery of why the universe exists, the potential for liquid water on Mars, and the birth of a new solar system.Unraveling the Mystery of the UniverseScientists have made significant strides in understanding the fundamental differences between matter and antimatter, a question that has puzzled humanity since the dawn of physics. The LHCB collaboration at CERN has provided compelling evidence of a mirror-like asymmetry in how baryons behave compared to their antimatter counterparts. This breakthrough could shed light on why our universe is predominantly composed of matter, despite the equal creation of matter and antimatter during the Big Bang. We delve into the implications of this discovery and its potential to unlock the secrets of the universe's existence.Liquid Water on Mars: A New PossibilityA groundbreaking study suggests that liquid brines may form on the Martian surface, challenging the long-held belief that Mars is devoid of liquid water. Lead researcher Vincent Chevrea from the University of Arkansas discusses how meteorological data and advanced computer modeling indicate that brines could develop during specific seasonal windows. This finding opens new avenues for the search for life on Mars and highlights the importance of targeting these periods for future exploration.Witnessing the Dawn of a New Solar SystemAstronomers have made an unprecedented observation of a new solar system forming around the protostar HOPS 315, located 1300 light-years away. Using the Atacama Large Millimeter/Submillimeter Array (ALMA), researchers have identified the very first specks of planet-forming material, marking a significant milestone in our understanding of solar system formation. This discovery not only provides insight into the processes that shaped our own solar system 4.6 billion years ago but also offers a unique opportunity to study planetary formation in real-time.www.spacetimewithstuartgary.com✍️ Episode ReferencesNature Journalhttps://www.nature.com/natureJournal of Communications Earth and Environmenthttps://www.nature.com/commsenvBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.

In this episode of SpaceTime, we explore the latest discoveries in lunar geology, the intriguing concept of dark dwarves, and the stunning features of the Carina Nebula.The Youngest Basaltic Lunar MeteoriteScientists have uncovered a 2.35 billion-year-old lunar meteorite, Northwest Africa 16286, which fills a significant gap in our understanding of the Moon's volcanic history. This meteorite, distinct in its chemical profile, suggests that volcanic activity on the Moon persisted longer than previously thought, unveiling new insights into its internal heat generation processes. Lead author Joshua Snape from the University of Manchester explains how this rare sample enhances our knowledge of lunar geology without the costs associated with space missions.Hypothetical Dark Dwarfs and Dark MatterA new study proposes the existence of hypothetical objects called dark dwarves, which could help unravel the mystery of dark matter—an invisible substance that constitutes approximately 80% of the universe's mass. Researchers suggest that these low-mass objects could interact with dark matter in ways that produce observable effects, providing a potential pathway to understand this elusive component of the cosmos. The study highlights the importance of identifying markers, such as lithium-7, to confirm the existence of dark dwarfs and advance our understanding of dark matter.Adaptive Optics and the Carina NebulaUsing adaptive optics, astronomers have achieved unprecedented clarity in imaging the western wall of the Carina Nebula, revealing intricate structures previously hidden by dust and gas. This breakthrough allows for a deeper investigation into star formation processes in this massive stellar nursery. The enhanced images showcase how massive young stars influence their surroundings and contribute to the cycle of stellar life, offering a glimpse into the conditions that may have shaped our own solar system.www.spacetimewithstuartgary.com✍️ Episode ReferencesJournal of Cosmology and Astroparticle Physicshttps://www.journalofcosmology.com/Nature Journalhttps://www.nature.com/natureBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 00:49 04:51 09:17 15:16 17:08

In this episode of SpaceTime, we unlock the secrets of the Moon's far side, explore the Sun's helicity barrier, and discuss the European Space Agency's advancements in orbital launch vehicles.Extended Volcanism on the Moon's Far SideRecent findings reveal that the Moon's far side has experienced extended volcanism for at least 1.4 billion years, with two significant volcanic phases occurring around 4.2 and 2.8 billion years ago. This research, stemming from samples collected by China's Chang' E6 mission, provides insights into the Moon's geological history and the asymmetry between its near and far sides. The study highlights the role of colossal impacts in shaping the Moon's interior and suggests uneven distribution of volatile elements.Discovery of the Sun's Helicity BarrierA groundbreaking study has identified a region of the Sun known as the helicity barrier, which plays a crucial role in heating and accelerating the solar wind. Observations from NASA's Parker Solar Probe have confirmed the existence of this barrier, providing insights into the mechanisms of turbulent dissipation and coronal heating. This discovery helps explain temperature anomalies in the solar atmosphere and enhances our understanding of space weather events that impact Earth.European Space Agency's Launch Vehicle DevelopmentsThe European Space Agency has narrowed its list of potential candidates for future orbital launch vehicles. The selected companies will receive funding to develop their systems, aiming to increase competition and choice in European launch services. This initiative mirrors efforts by NASA in the U.S. to foster a diverse range of commercial launch providers, enhancing capabilities for future space missions.www.spacetimewithstuartgary.com✍️ Episode ReferencesNature Journalhttps://www.nature.com/naturePhysical Reviewhttps://journals.aps.org/pr/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.

Sponsor DetailsThis episode is brought to you with the support of NordVPN...our official VPN partners. To grab your heavily discounted price, plus special offer with 30-day moneyback guarantee, head over to www.nordvpn.com/stuartgary and use the coupon coded STUARTGARY at checkout.In this episode of SpaceTime, we explore some fascinating recent developments in our understanding of Earth and beyond.Earth Experiences Its Shortest DayOn July 9, Earth recorded one of its shortest days, with a rotation 1.51 milliseconds shorter than the average. We discuss how various factors, including gravitational influences from the Moon and Sun, tectonic movements, and even human activities, affect Earth's rotation. This episode also highlights the implications of these changes on our timekeeping systems and the necessity of leap seconds to maintain accuracy in clocks and navigation systems.Gilmour Space's Ares 1 Rocket Launch PreparationsGilmour Space is gearing up for the maiden test flight of its Ares 1 orbital rocket after previous launch attempts were postponed due to technical glitches and weather conditions. We delve into the rocket's design, which includes a unique hybrid propulsion system, and discuss the significance of this launch as Australia’s first all-Australian designed and built launch vehicle since the 1970s.Revising Earth's Geological TimelineA groundbreaking study suggests that Earth's first solid crust formed from a magma ocean around 4.5 billion years ago, shortly after a massive impact event that created the Moon. This research challenges long-held beliefs about the formation of continents and the onset of plate tectonics, indicating that the chemical signatures of continental crust may have originated much earlier than previously thought. We explore the implications of this study for our understanding of Earth's early geological history and the evolution of life.www.spacetimewithstuartgary.com✍️ Episode ReferencesNature Journalhttps://www.nature.com/natureNASAhttps://www.nasa.gov/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.

This episode of SpaceTime is brought to you by NordVPN....our official VPN partner. To get your special SpaceTime listener offer, simply visit www.nordvpn.com/stuartgary. You'll be glad you did...and remember, our special offer comes with a 30 day  money back guarantee...so there's nothing to lose. In this episode of SpaceTime, we delve into groundbreaking research that sheds light on Earth's ancient history, the formation of hot Jupiters, and the enigmatic climate of Mars.Earth's Oldest Rocks Confirmed in Northern CanadaA recent study published in the journal Science confirms that the oldest rocks on Earth are located in northern Quebec, Canada, dating back 4.16 billion years. Lead author Jonathan Nally. from the University of Ottawa explains how this discovery provides a unique window into the Hadean Eon, offering insights into the early Earth's environment and the formation of its first continents. While the Jack Hills Range in Australia holds the oldest material of terrestrial origin, these Canadian rocks are pivotal in understanding Earth's formative years.New Insights into Hot Jupiter FormationWe explore the intriguing case of CI Tau B, a hot Jupiter that orbits a young star just 450 light-years away. Researchers from Rice University and Lowell Observatory have utilized advanced spectroscopic techniques to analyze the planet's mass and brightness, revealing that it formed through a hot start mechanism rather than traditional models. This study provides a critical benchmark for understanding how giant planets can form rapidly in close proximity to their stars, challenging long-held assumptions in planetary science.Was Mars Always Doomed to be a Desert?A new hypothesis from the University of Chicago suggests that Mars was never meant to remain a warm, habitable planet. The study indicates that the planet's past liquid water periods were likely short-lived, driven by the Sun's gradual brightening. Unlike Earth, which has maintained its habitability, Mars appears to self-regulate towards desert conditions, raising questions about the mechanisms that have led to its current frozen state. The findings, published in Nature, build on previous discoveries by NASA's Curiosity rover and could reshape our understanding of Martian climate history.www.spacetimewithstuartgary.com✍️ Episode ReferencesScience Journalhttps://www.sciencemag.org/Astrophysical Journal Lettershttps://iopscience.iop.org/journal/1538-4357Nature Journalhttps://www.nature.com/natureBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.

In this episode of SpaceTime, we explore some of the most exciting recent discoveries in astronomy, including the largest Oort Cloud comet ever observed and remarkable achievements from NASA's Mars Perseverance Rover.Comet C/2014 UN271 Bernardinelli-Bernstein: A Giant from the Oort CloudAstronomers have made a groundbreaking discovery by detecting molecular activity in Comet C/2014 UN271 Bernardinelli-Bernstein, the largest and most distant active comet ever observed. Originating from the Oort Cloud, this colossal comet measures nearly 140 km across, revealing complex jets of carbon monoxide gas and providing insight into its behavior far from the Sun. Observations from the Atacama Large Millimeter/Submillimeter Array (ALMA) in Chile have confirmed its status as the largest known Oort Cloud comet, offering a rare glimpse into the chemistry and dynamics of these distant celestial objects.Nasa's Perseverance Rover Sets New Distance RecordNASA's Mars Perseverance Rover has achieved a new milestone, traveling 411 meters in a single autonomous drive while exploring the Jezero Crater. This episode highlights the rover's innovative AUTONAV self-driving system and its 30th Abrasion Study of a Martian rock named Kenmore. The findings reveal significant mineral compositions, including clay minerals, iron, and magnesium, enhancing our understanding of Mars' geological history and potential past habitability.Exoplanets Triggering Stellar FlaresAstronomers have discovered that certain exoplanets in close orbits around their host stars can trigger powerful stellar flares, leading to atmospheric erosion over time. This groundbreaking finding, reported in the journal Nature, demonstrates the interaction between planets and their stars in a way never before observed. The study, conducted using the European Space Agency's CHEOPS spacecraft, reveals that these energetic flares can significantly impact the evolution of the orbiting planets, providing new insights into the dynamics of stellar systems.www.spacetimewithstuartgary.com✍️ Episode ReferencesAstrophysical Journal Lettershttps://iopscience.iop.org/journal/1538-4357NASA Perseverance Roverhttps://mars.nasa.gov/mars2020/Nature Journalhttps://www.nature.com/natureBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.

In this episode of SpaceTime, we dive into the latest astronomical discoveries and the implications for future space exploration.New Interstellar Visitor: Comet 3I AtlasAstronomers have identified a new interstellar object, designated 3I Atlas, which is currently traversing our solar system. Discovered by NASA's ATLAS telescope in Chile, this comet is approximately 670 million kilometers away and poses no threat to Earth, as it will pass at a safe distance of 240 million kilometers. With a velocity exceeding 51 kilometers per second, 3I Atlas is only the third confirmed interstellar visitor, following the enigmatic Oumuamua and the more familiar comet 2I/Borisov. As observations continue, scientists are eager to learn more about its origins and characteristics.China's Ambitious Mars Sample Return MissionSpeculation is mounting that China may outpace the U.S. and Europe in the race to return the first samples from Mars. The recently announced Tianwen 3 mission aims to collect Martian samples and bring them back to Earth for detailed analysis, potentially revealing whether life ever existed on the Red Planet. This mission follows China's successful deployment of the Zhurong rover and highlights the ongoing competition in space exploration. Scientists will need to target specific locations on Mars to collect samples that could provide insights into the planet's past habitability.Vera C Rubin Observatory's Stunning First ImagesAstronomers are thrilled by the first images released by the Vera C Rubin Observatory, which features an 8.4-meter telescope and a 3,200-megapixel camera. This observatory is set to conduct the world's largest sky survey over the next decade, generating an astonishing 20 terabytes of data each night. The Legacy Survey of Space and Time will provide unprecedented insights into cosmic phenomena, including asteroids, supernovae, and the mysteries of dark matter and dark energy. Australian astronomers are collaborating in this global effort, processing and analyzing the vast amounts of data generated.www.spacetimewithstuartgary.com✍️ Episode ReferencesNASA ATLAShttps://www.nasa.gov/China's Tianwen 3 Missionhttps://www.space.com/china-mars-sample-return-tianwen-3Vera C Rubin Observatoryhttps://www.lsst.org/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.

In this episode of SpaceTime, we uncover remarkable insights into Mars, Mercury, and the latest developments in space exploration.Hidden Martian Volcano: Jezero MonsScientists have identified a previously overlooked volcano, Jezero Mons, located on the rim of Jezero Crater, where NASA's Perseverance rover is actively collecting samples. This discovery could provide vital clues about Mars' volcanic history and habitability, suggesting that the region may have supported life due to the interplay of volcanic heat and water. The findings, published in Communications Earth and Environment, highlight the need for further exploration of Mars' geology, as volcanism plays a crucial role in understanding the planet's past.Tidal Forces Shaping Mercury's CliffsA new study published in Geophysical Research Planets proposes that tidal forces from the Sun may have contributed to the deformation of Mercury's towering cliffs. Traditionally attributed to cooling and contraction, this research indicates that the planet's unique orbital dynamics could also influence its geological features. The BepiColombo mission, scheduled to arrive at Mercury next year, aims to gather data that could validate these findings and enhance our understanding of the planet's evolution over billions of years.Axiom Space's AX4 Mission Arrives at the ISSThe Axiom Space AX4 mission has successfully docked at the International Space Station for a 14-day stay. This mission, featuring a diverse international crew, aims to conduct over 60 scientific and commercial experiments, furthering Axiom's goal of establishing a private space station in low Earth orbit. Despite facing multiple delays, the mission underscores the growing role of private companies in space exploration.www.spacetimewithstuartgary.com✍️ Episode ReferencesCommunications Earth and Environmenthttps://www.nature.com/commsenv/Geophysical Research Planetshttps://agupubs.onlinelibrary.wiley.com/journal/24701343Axiom Spacehttps://www.axiomspace.com/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.

This e[pisode of SpaceTime is brought to you with the support of NordVPN, SpacTime's official VPN service. And have we got a great offer for you, with a 30 Day Money-Back guarantee! To check out the details vist nordvpn.com/stuartgary or use the coupon code STUARTGARY at checkout.In this episode of SpaceTime, we explore the latest discoveries and research that are reshaping our understanding of Mars and the effects of solar activity on planetary climates.Curiosity Rover's New Martian Rock SamplesNASA's Mars Curiosity rover has drilled into a new region of Martian rock, revealing intriguing features that may provide insights into whether the planet ever had conditions suitable for life. The rover's findings include unique boxwork patterns formed by groundwater, suggesting that even as Mars dried up, water was still present below the surface. As Curiosity ascends Mount Sharp, scientists are eager to understand the implications of these patterns and the mineral cements involved, which may hold clues to Mars' climatic history and the potential for ancient microbial life.Solar Flares and Weather PatternsA groundbreaking study published in the Astronomical Journal has uncovered a connection between solar flares and short-term changes in weather patterns on exoplanets. Researchers found that flares from a planet's host star can cause measurable climate shifts within days, highlighting the importance of solar activity in modulating atmospheric behavior. This research not only enhances our understanding of exoplanet habitability but also suggests that solar variability may influence weather systems on Earth, particularly in volatile regions.Nasa's In-Flight Imagery ProjectNASA's Scientifically Calibrated in Flight Imagery (SCIFLI) team is set to gather vital data during the reentry of a European aerospace company's demonstration capsule. Utilizing advanced instruments, including a spectrometer and high-definition telescope, SCIFLI aims to capture real-time performance data that will refine computational models for future space missions. This mission highlights the importance of empirical data in enhancing safety and performance for crewed and robotic space exploration.www.spacetimewithstuartgary.com✍️ Episode ReferencesAstronomical Journalhttps://iopscience.iop.org/journal/1538-3881NASA Curiosity Roverhttps://mars.nasa.gov/msl/NASA SCIFLI Teamhttps://www.nasa.gov/langley/scifliBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.