Spacetime With Stuart Gary
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Sinopsis
The new home of the ABCs (Australia) popular astronomy podcast (formerly known as StarStuff). Recognized worldwide by our listeners and industry experts as one of the best programs on Astronomy and Space Science.
Episodios
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S27E49: Black Hole Titans: Gaia's Gaze Reveals a New Cosmic Champion
22/04/2024 Duración: 26minPrepare for a cosmic revelation in SpaceTime Series 27 Episode 49, as we journey through the Milky Way to uncover a celestial heavyweight—the most massive stellar black hole ever discovered in our galaxy. Detected by the vigilant eyes of the European Space Agency's Gaia mission, this black hole, known as Gaia BH3, imposes a peculiar wobble on its companion star, betraying its presence. Weighing in at a colossal 33 solar masses and residing a mere 2,000 light-years away in the constellation Aquila, BH3 redefines our understanding of stellar remnants and the mysterious dance of gravity and mass that shapes them.Then, we take a detour through the evolutionary tracks of white dwarf stars, which have long been the cooling embers of the cosmic campfire. Recent observations from Gaia have spotted a group of these stellar corpses defying the natural order, mysteriously ceasing to cool. This perplexing behavior is challenging astronomers to rethink the very nature of these ancient stars, which may not be the reliable
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S27E48: Cosmic Cartography: Charting Dark Energy's Role in the Universe's Fate
19/04/2024 Duración: 31minEmbark on an astronomical odyssey with SpaceTime Series 27 Episode 48, as we unveil the most detailed view of the expanding universe to date. The first-year data from DESI, the Dark Energy Spectroscopic Instrument survey, is in, and it's changing the cosmic game. This groundbreaking five-year study is mapping the universe in 3D, charting the enigmatic influence of dark energy over time. Will the universe meet a chilling big freeze, or will dark energy's relentless acceleration lead to a catastrophic big rip? With precision better than 1%, DESI's data is painting a complex picture of our cosmic destiny.Then, join us in celebrating a celestial milestone as the Solar Observatory spacecraft SOHO captures its 5000th comet. SOHO's unexpected role as a prolific comet hunter has deepened our understanding of these enigmatic sun-grazers, offering insights into the sun's atmosphere and the large-scale structure of comets.Plus, we follow the Soyuz MS-24 capsule's return to Earth, bringing home a NASA astronaut and the f
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S27E47: Stellar Nurseries: Unveiling the Origins of Brown Dwarfs and Starbursts
17/04/2024 Duración: 25minPrepare to illuminate the shadowy frontiers of space in SpaceTime Series 27 Episode 47. We begin by shedding light on new findings that reveal brown dwarfs, those celestial enigmas straddling the line between the largest planets and the smallest stars, are far more star-like than we ever imagined. Born from the same intricate dance of gas and dust that gives rise to stars, these failed stars have a story more intertwined with their luminous kin than previously thought. Next, we peer into the future, where the clock is ticking down to an explosive cosmic event. Astronomers eagerly anticipate a nova eruption within a binary star system, set to dazzle the skies sometime before year's end. This stellar spectacle, a cyclical detonation on the surface of a white dwarf, promises to be a beacon in the night, echoing observations that date back over a century.We then voyage to the extreme starburst galaxy M82, a crucible of creation churning out new stars at a rate tenfold that of our own Milky Way. With the James Web
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S27E46: Stellar Cannibalism: Unraveling the Secrets of Star-Eating Phenomena
15/04/2024 Duración: 24minSpaceTime Series 27 Episode 46: The Cosmic Dance of Neutron Stars and Black HolesJoin us on a thrilling journey through the cosmos in SpaceTime Series 27 Episode 46, where we delve into the mysteries of a possible neutron star-black hole merger detected in gravitational waves. The LIGO-Virgo-KAGRA collaboration may have stumbled upon a cosmic ballet between the densest objects in the universe, offering tantalizing clues about the elusive mass gap and challenging our understanding of stellar evolution.Next, we explore the cannibalistic tendencies of stars as a new study reveals that stars often end up devouring their own planets. This celestial feast, found in roughly 8% of binary star systems examined, raises questions about the stability of planetary orbits and could reshape our knowledge of cosmic dynamics.And as North America was plunged into darkness by a total solar eclipse, scientists seized the opportunity to conduct groundbreaking research. From rockets piercing the upper atmosphere to jets chasing th
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S27E45: Martian Mysteries: Perseverance's Quest for Ancient Life Signs
12/04/2024 Duración: 19minSpaceTime Series 27 Episode 45 *Perseverance collects its 24th sample on Mars NASA’s Mars Perseverance Rover has just collected its 24 geological sample from the surface of the red planet. The drill core offers new clues about Jezero Crater and the lake it may have once held. *New date set for Starliner's first manned mission NASA has set May 6 as the opening of the launch window for the first manned flight of Boeing’s long troubled CST-100 Starliner. The flight to the International Space Station was originally slated for this month. *Space junk slams into a Florida home NASA says it’s analyzing an object that crashed into a Florida man's home last week which is suspected of being piece of debris jettisoned from the International Space Station. *The Science Report New research shows that the warming climate will turn Australia’s soil into a net emitter of carbon dioxide. A new study claims women with a low resting heart rate had a slightly higher chance of a criminal lifestyle. Identifying criminals by airb
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S27E44: Unveiling Mars' Ancient Rivers: Curiosity's Quest for Extinct Waterways
10/04/2024 Duración: 29minThe Space, Astronomy and Science Podcast. SpaceTime Series 27 Episode 44 *New Clues About Mars’ Ancient Water NASA’s Mars Curiosity rover has arrived at an area in Gale Crater’s Mount Sharp that may show evidence liquid water flowed on the red planet for much longer than previously thought. *NASAs new Moon buggies NASA has selected three companies to help it develop its proposed new Moon buggy --- the lunar terrain vehicle or LTV. *The largest digital camera ever built for astronomy After two decades of work, scientists and engineers at the US Department of Energy's Stanford Linear Accelerator Centre’s National Accelerator Laboratory have finally completed the Legacy Survey of Space and Time Camera -- The largest digital camera ever built for astronomy. *The Science Report A new study shows that high blood pressure is the leading risk factor for death. The Persian Plateau identified as pivotal for Homo sapiens migration out of Africa. Volcanoes could hold the clues to how the first building blocks of life wer
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S27E43: Galactic Ghosts: Unveiling the Milky Way's Dimmest Satellite System
08/04/2024 Duración: 27minThe Space, Astronomy & Science Podcast.SpaceTime Series 27 Episode 43*The Milky Way's Faintest Star System UnveiledAstronomers have unveiled the faintest star system known to orbit our Milky Way galaxy, Ursa Major III Unions I. This ancient and elusive star system, reported in the Astrophysical Journal, may be one of the most dark matter-dominated systems discovered, lying just 30,000 light-years away. With only about 60 stars and a mass just 16 times that of the Sun, it challenges our understanding of galaxy formation and the role of dark matter in the cosmos.*Queensland's Bowen Orbital Spaceport Launches into ActionAustralia's space industry takes a giant leap with the official opening of the Bowen Orbital Spaceport in Queensland. Set to host its inaugural launch with Gilmore Space's Ares rocket, the spaceport marks a significant milestone in the nation's commercial space endeavors. Ares, a hybrid propulsion rocket, aims to deliver payloads into low Earth orbit, signifying Australia's re-emergence as a
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S27E42: Martian Oasis: Gale Crater's Watery Past Revealed
05/04/2024 Duración: 47minThis episode is brought to you by NordPass...the password manager (and more) that you need in your life for not very much money. To get the deal, visit www.nordpass.com/stuartThe Space, Astronomy & Science Podcast.SpaceTime Series 27 Episode 42*Water's Persistent Presence in Mars' Gale CraterMars' Gale Crater may have harbored water far longer than scientists previously believed, challenging our timeline of the Red Planet's arid transformation. New evidence from NASA's Curiosity rover, detailed in the journal Geology, suggests that underground water may have been present in the crater during the latter part of the Hesperian period, 3.7 to 3 billion years ago. This discovery, marked by deformed desert sandstone, hints at a more habitable past and could reshape our search for ancient Martian life.*The Sun's Spectacular Double Solar FlareThe Sun has unleashed its most powerful eruption since 2017 with a double solar flare event, signaling a ramp-up towards solar maximum. The X1.1-class flare, coupled with a
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S27E41: Earth's Puzzling Past: The Greenlandic Birth of Scandinavian Lands
03/04/2024 Duración: 32minThe Space, Astronomy & Science Podcast.SpaceTime Series 27 Episode 41*The Scandinavian Connection: Born from Greenland's Ancient CrustIn a groundbreaking geological study, scientists have traced the oldest Scandinavian bedrock back to its origins in Greenland, revealing a continental connection dating back 3.75 billion years. Published in the journal Geology, this research uncovers a hidden chapter of Earth's crust beneath Denmark and Scandinavia, suggesting a tectonic detachment from Greenland that predates previous estimates by a quarter of a billion years. The discovery, locked within zircon minerals, not only reshapes our understanding of continental drift but also underscores Earth's uniqueness in the solar system as a cradle for life.*Blue Origin's Orbital Reef: A Leap Towards Commercial Space HabitatsBlue Origin, in collaboration with Sierra Space, has achieved a significant milestone in the development of the Orbital Reef commercial space station. Under NASA's watchful eye, the project has success
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S27E40: Magnetic Mysteries: Sagittarius A*'s Invisible Force Field Exposed
01/04/2024 Duración: 33minThe Space, Astronomy & Science Podcast.SpaceTime Series 27 Episode 40*Magnetic Mysteries at the Milky Way's HeartThe Event Horizon Telescope has revealed organized magnetic fields swirling at the periphery of Sagittarius A*, the supermassive black hole at the Milky Way's core. In a groundbreaking observation, astronomers have captured these fields in polarized light, finding remarkable similarities to the black hole in galaxy M87. This discovery suggests that strong magnetic fields could be a universal trait among black holes, influencing how they interact with their surrounding matter. The study's implications stretch far beyond the iconic Sagittarius A*, offering a glimpse into the enigmatic behavior of black holes and their powerful ejections into space.*The Birth of Blue Supergiants Through Stellar MergersBlue supergiants, some of the universe's most luminous and massive stars, have long puzzled astronomers due to their abundance and solitary nature. A new study posits that these cosmic behemoths, oft
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S27E39: Galactic Goliaths: The Einasto Supercluster Unveiled
29/03/2024 Duración: 25minThe Space, Astronomy & Science Podcast.SpaceTime Series 27 Episode 39*Unveiling the Einasto Supercluster: A Cosmic BehemothAstronomers have unveiled one of the most massive superclusters ever observed, a colossal structure named the Einasto Supercluster. Comprising thousands of galaxies and a mass of 20 followed by 15 zeros in stars, this supercluster is a testament to the pioneering work of Jan Oort, whose 95th birthday coincides with the discovery. The Einasto Supercluster, stretching 360 million light-years across, provides new insights into the large-scale structure of the universe, challenging our understanding of galactic evolution and the gravitational forces at play in these vast cosmic metropolises.*Humans Alter Asteroid's Path and ShapeIn a groundbreaking mission, humans have altered the shape and orbit of an asteroid. NASA's DART spacecraft collided with the asteroid moon Dimorphos, not only knocking it off course but also reshaping its entire structure. This kinetic impact demonstration confir
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S27E38: The Final Puzzle Piece: Witnessing Planetary Formation's Endgame
27/03/2024 Duración: 25minThe Space, Astronomy & Science Podcast.SpaceTime Series 27 Episode 38*Witnessing the Final Stages of Planetary FormationFor the first time, astronomers have captured the end of the planetary formation process, observing the dispersal of gas from a young star's circumstellar disk. The James Webb Space Telescope has provided unprecedented images of the Tchar star system, where a vast gap in its disk suggests we're witnessing the final act in its planetary evolution. The study sheds light on the fate of gas giants and terrestrial planets, revealing the delicate dance of creation that shapes nascent solar systems.*The Devil's Comet: A Green Spectacle in the SkyComet 12P/Pons-Brooks, with its distinctive green hue and horned appearance, is making its first visit to the inner solar system in over 70 years. This Mount Everest-sized icy wanderer could grace our skies with its naked-eye visibility as it reaches perihelion this April. Nicknamed the 'Devil's Comet', its cryovolcanic nature promises a celestial show
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S27E37: Betelgeuse's Boiling Secret: The Star That Spins Too Fast
26/03/2024 Duración: 36minThe Space, Astronomy & Science Podcast.SpaceTime Series 27 Episode 37*Betelgeuse's Surprising Spin: A Red Supergiant's SecretsAstronomers have been intrigued by the rapid rotation of the red supergiant star Betelgeuse, but new insights suggest its seemingly swift spin could be an illusion caused by its boiling surface. The star's dimming, once thought to herald an imminent supernova, turned out to be dust obscuring our view. Located in Orion, Betelgeuse's tumultuous surface, with convective bubbles the size of Earth's orbit, challenges our understanding of stellar dynamics.*The Moon's Cratered Past: A History Written in ImpactsNew research indicates the Moon endured more asteroid and comet bombardments than previously thought, potentially reshaping our knowledge of its geological history. This study reveals that early impacts may have left subtle marks, eluding detection due to a still-cooling lunar surface. As the Moon's magma ocean solidified, these ancient impacts could tell a tale of a dynamic early s
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S27E36: Neutron Star Mass Mystery: Unlocking the Threshold of Black Holes
22/03/2024 Duración: 24minThe Space, Astronomy & Science Podcast.SpaceTime Series 27 Episode 36*The Precise Mass of Neutron Stars UnveiledAstronomers have pinpointed the exact upper mass limit for non-rotating neutron stars, providing a critical piece to the puzzle of black hole evolution. The study, detailed in Physical Review D, reveals that the heaviest non-rotating neutron stars weigh about 2.25 solar masses. This breakthrough in nuclear physics and astrophysics could refine our understanding of the stellar life cycle and the transition from neutron stars to black holes.*Japan's Aspirations for Private Spaceflight Go Up in SmokeJapan's first privately operated space launch provider, Space One, faced a fiery setback as its new solid-fuel rocket exploded seconds after liftoff. The ill-fated Karaos rocket, carrying a government test satellite, disintegrated over the Wakayama region, underscoring the harsh realities of space exploration. The incident highlights the challenges faced by emerging private space companies in the compet
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S27E35: Red Planet Revelation: Mars Hides an Ancient Volcanic Behemoth
20/03/2024 Duración: 31minThe Space, Astronomy & Science Podcast.SpaceTime Series 27 Episode 36*Mars Unveils a Colossal Volcanic SecretAstronomers have discovered a massive ancient volcano on Mars, hidden beneath an ice sheet in the planet's Tharsus volcanic province. This behemoth, which has eluded detection by orbiting spacecraft since 1971, could offer new insights into the Red Planet's geologic past and potential for life. The structure, tentatively named Noctus Volcano, stands over 29,600 feet tall and spans about 280 miles across. Its discovery near the labyrinthine Noctus Labyrinthus and the colossal Valles Marineris suggests a long history of volcanic activity and hints at the presence of glacial ice beneath its surface.*Europe's New Radar Mission to Monitor Climate ChangeThe European Space Agency is gearing up for ROSAL, a cutting-edge Earth observation mission set to scrutinize the planet's oceans, land, and ice. With the largest deployable planar antenna array ever built, ROSAL will complement existing Copernicus Sentin
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S27E34: The Ups and Downs of SpaceX's Starship: A Test Flight Tale
18/03/2024 Duración: 36minThe Space, Astronomy & Science Podcast.SpaceTime Series 27 Episode 34*SpaceX's Starship Tests the Limits of SpaceflightIn a breathtaking display of rocketry, SpaceX's Starship edges closer to the stars, nearly perfecting its third flight test. The behemoth of engineering, the Starship Super Heavy, roared through the Texan skies, reaching for orbital velocity. Despite a few hiccups, including the loss of both the Starship and its Super Heavy booster, the test marked significant progress towards SpaceX's ambitious goals for space colonization.*Voyager 1: The Silent Pioneer's Uncertain FutureVoyager 1, humanity's farthest-flung emissary, is now sending back puzzling signals from interstellar space. After over four decades of travel, the spacecraft's communication has become erratic, leaving scientists at NASA's Jet Propulsion Laboratory scrambling to decode the mystery. Could this be the twilight of the mission that has reshaped our understanding of the solar system?*A New Window into the High-Energy CosmosT
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S27E33: Star Shredded by Black Hole: A Cosmic Feast Observed
15/03/2024 Duración: 31minFor your special NORDVPN discount and risk free 30 Day Money back guarantee, visit www.nordvpn.com/stuartgary and use the code STUARTGARY at checkout. Get your online privacy under control with the best in the business.The Space, Astronomy & Science Podcast.SpaceTime Series 27 Episode 33*The Black Hole that Ripped Apart a StarIn a cosmic display of destruction, astronomers have witnessed the closest recorded incident of a star being devoured by a supermassive black hole. The event, spotted in galaxy NGC 3799, was observed in visible light, offering unprecedented insights into these violent phenomena. The tidal disruption event, now cataloged as Assassin 23 BD, emitted less energy and faded more rapidly than typical cases, placing it in a unique classification and suggesting such occurrences may be more common than once thought.*Hunting New Physics in Neutron Star WrecksThe cataclysmic mergers of neutron stars could be hiding secrets of new physics, with potential clues about the enigmatic dark matter. The
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S27E32: Juno's Europa Flyby: Unraveling the Oxygen Secrets of Jupiter's Icy Moon
13/03/2024 Duración: 26minThis episode is brought to you with the support of Incogni....the data protection service. To claim your special offfer benefit as a SpaceTime listener visit www.icogni.com/stuartgary or use the coupon code STUARTGARY at checkout. 60% off and a 30-day money back guarantee.The Space, Astronomy & Science Podcast.SpaceTime Series 27 Episode 32*Juno's Icy Encounter: Oxygen Production on EuropaNASA's Juno spacecraft has made a groundbreaking discovery, directly measuring charged oxygen and hydrogen molecules on Jupiter's icy moon Europa. With findings reported in Nature Astronomy, this revelation provides critical insights into the moon's global subsurface ocean's potential habitability. Juno's flyby uncovers the atmospheric composition of Europa, offering a new understanding of its surface ice and the intriguing possibility that oxygen may fuel life deep within the moon's ocean.*White Dwarf Stars Defying the Cooling ProcessAstronomers are left baffled by a population of white dwarf stars that have mysteriousl
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S27E31: Cosmic Graveyard: The Enigma of the Universe's Oldest Dead Galaxy
11/03/2024 Duración: 28minBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-with-stuart-gary--2458531/support.The Space, Astronomy & Science Podcast.SpaceTime Series 27 Episode 31*The Enigma of the Universe's Oldest Dead GalaxyIn a universe brimming with stellar birth, astronomers have stumbled upon a galaxy that ceased forming stars over 13 billion years ago. This ancient cosmic graveyard, captured by the Webb Space Telescope, is challenging our understanding of galactic life cycles. The galaxy, which experienced a rapid starburst before falling eerily silent, offers a tantalizing glimpse into the early universe's dynamics. Join us as we unravel the mystery of this prematurely quenched galaxy and its implications for cosmic evolution.*SpaceX's Starship: Gearing Up for the Next Giant LeapSpaceX has eyes set on March 14 for the next monumental test flight of its colossal Starship Super Heavy rocket. With the goal of reaching orbital heights and splashing down in the Indian Ocean, this mission is critica
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S27E30: Axion Stars: The Unseen Beacons of Dark Matter Mysteries
08/03/2024 Duración: 42minThe Space, Astronomy & Science Podcast.SpaceTime Series 27 Episode 30*Unveiling the Mysteries of Dark Matter with Hypothetical Axion StarsCould the enigmatic axion star hold the key to understanding dark matter? Join us as we delve into the realm of theoretical physics, where scientists are using the expected properties of these never-before-seen stars to potentially pinpoint the elusive components of dark matter. First proposed in 1977, axions are lightweight candidates for dark matter, and their discovery could illuminate both dark energy and the darkest secrets of the cosmos.*Mars: A Barren Aquifer and the Quest for Ancient GroundwaterMars' past as a wet world is etched into its surface, but a new study reveals that ancient Martian aquifers may have been surprisingly dry. Despite evidence of past water flow, researchers suggest that the red planet's southern highlands experienced minimal groundwater recharge. The implications? A vastly different water cycle from Earth's, challenging our search for life